FAQs
What is Rosita Extra Virgin Cod Liver Oil?
Rosita Extra Virgin Cod Liver Oil is a real Norwegian cod liver oil that’s fresh, raw and handcrafted from wild livers via an ancient extraction technique that’s completely natural. The oil is completely unrefined and produced under the total absence of heat, a process that protects its nutritional value. Further, No chemicals, solvents and mechanical devices are ever used during the extraction process. This type of cod liver oil is both precious and rare — something that’s almost impossible to achieve on a commercial level.
Rosita Extra Virgin Cod Liver Oil has a pale/golden color and a mild, fresh fish taste. It is thoroughly tested by leading universities and government-linked institutes (view our test results here).
Rosita: From fish to bottle
Is Rosita the only producer?
Yes. We at Rosita have had positive comments regarding the authenticity of our Extra Virgin Cod Liver Oil from a variety of marine specialists. We’re the only producer of genuine, raw Extra Virgin Cod Liver Oil. With other commercial “natural” brands, even if a cold-pressed extraction procedure is used to produce cod liver oil, a heat associated method is still required to purify the oil of contaminants. We are also the only company using a heat-free and chemical-free natural purifying method. This unique, patented method makes use of a substance naturally occurring in the ocean that has the ability to attract and bind to contaminants like a magnet. This substance, together with its bound contaminants, can then be gently removed from the oil in a similar way that sediments are removed from a fine wine. Here’s more information on how our Extra Virgin Cod Liver Oil is created and on our patent.
What does Rosita taste like?
Rosita Extra Virgin Cod Liver Oil is fresh, wild caught and raw — from the clean waters of the North Atlantic. Given all of these unique factors, it tastes like fresh fish! Nothing is done to alter the taste or smell of the oil. No flavorings are added.
Many people enjoy the taste, while others may find it very fishy.
Please keep in mind, there’s nothing like it on the market, so Rosita’s inherent taste is unlike the cod liver oils you can pick up at the grocery store. An industrially processed cod liver oil that tastes like lemon or is bland is likely is devoid of its proper nutrients. Here, you can be assured that the unprocessed, synthetic-free cod liver oil you get from Rosita is as fresh as the day it was bottled.
If you’re really sensitive to the taste of fresh fish, we also offer Rosita Extra Virgin Cod Liver Oil softgels, which have very little to no taste at all.
What is the major research that supports the use of Extra Virgin Cod Liver Oil?
Cod liver oil has traditionally been consumed as part of the diet, in particular, by people living in northern coastal areas of Norway. It was crucial to survival, especially the cold, dark and stormy conditions. It was also said to support people with health issues including rheumatism, aching joints and stiff muscles.* At the beginning of the 20th century, scientists established that cod liver oil was antirachitic, and so mothers would give it to their children to support their immune systems.* Modern scientific studies lend credence to the historical views.
It turns out cod liver oil is a nutrient-rich whole food. Unadulterated cod liver oil is a time-honored source of vitamins A, D3, and long-chain omega-3 fatty acids, especially docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA).
You can read more on our page all about the health benefits of cod liver oil, which includes links to published scientific studies.
Why is the Gadus morhua species of codfish used?
Ever since cod liver oil became a popular remedy, the livers of several species of Gadus have been used indiscriminately for its production. Even many fishermen are not able to discriminate between them. Gadus morhua, which lives in the colder waters and deeper sea regions, was the codfish species traditionally used by Rosita’s ancestors for producing truly authentic medicinal-grade cod liver oil. Gadus morhua is considered a delicacy in Norway, with a very special texture that is glassy, smooth and firm. It also has a richer taste compared to ordinary cod and falls apart on the plate in large creamy flakes when cooked. Liver oils from other types of fish, for example halibut liver oil, are higher in fat-soluble vitamins A and D. However they do not have the documented health capabilities as the Gadus morhua species of cod. Whether it’s a certain ratio of nutrients or some yet-to-be-discovered nutrient is unknown. “Cod Liver Oil and Chemistry” by F. P. Moller and “The Three Kinds of Cod Liver Oil” by L.J. De Jongh are two books written in the late 1800s detailing the dramatic healing effects of cod liver from the Gadus morhua species of cod.* Because Gadus Morhua is so prevalent in the Lofoten region of Norway, it became the hotbed of cod liver oil production in the 1800s and remains so to this day.
How do I take Rosita?
Here are the dosing recommendations for Rosita liquid:
- Adults: ½ to 1 teaspoon daily.
- Children and sensitive individuals: 1 to 4 drops daily.
- Infants (as approved by doctor): 1 to 3 drops daily. Drops may be administered by spoon or by dropper prior to feeding.
- Pregnant and nursing mothers: Do not exceed more than ¼ teaspoon daily.
- Best taken with food, as needed.
Here are the dosing recommendations for Rosita softgels:
- Adults: 3 softgels daily. (90 capsule bottle will last 30 days)
- Children and sensitive individuals: Begin by taking 1 softgel daily. The softgels may be punctured with a pin and the oil expressed into mouths of young children.
- Infants (as approved by doctor): 1 to 3 drops daily. The softgels may be punctured with a pin and the oil expressed into the mouth of an infant.
- Pregnant and nursing mothers: Do not exceed more than 3 softgels daily.
- Best taken with food, as needed.
Important: Rosita is premium, pure and potent. Therefore, it’s critically important to start slowly, with a lower dosage than recommended. For example, a very small dose every other day, or even once a week, until you can determine how the supplement affects your body and what feels right for you.
As a side note, here are a few tips on “prepping” your fresh Rosita liquid for the most optimal taste:
- Your bottle has to be refrigerated.
- Before taking your preferred dose, take it out of the fridge, set it on the counter for two minutes.
- Then shake! This allows your oil to be properly distributed (it’s a full spectrum oil, so shaking it makes for a consistent taste).
- Some people like to enjoy a slice of orange afterward for a refreshing chaser.
Some other fun ideas:
Why not try making “mølje”— a traditional northern Norwegian fish dish which is very nutritious and remarkably rich in vitamin D! Poach the white meat of cod, cod liver and a slice of grainy, pale orange cod roe (preferably from sustainably caught wild codfish) in salty water with a chopped onion. Remove from the water and mix ingredients together in a bowl. Add Rosita to the mixture and enjoy! Great for topping up vitamin D levels for the winter.
Externally: Not as a substitute for internal use, but it can also be rubbed into the skin. The oil can also be used topically for wounds and as a skin elixir.
How do I store Rosita?
Proper storage is critical to conserving the nutritional properties of Rosita Extra Virgin Cod Liver Oil. When using this product, keep it away from direct sources of heat and sunlight.
Liquid: Once you receive your Rosita liquid, please refrigerate your bottle (if you are going to consume the product fairly soon). For longer-term storage, unopened bottles can be stored in the freezer for up to two years. Once opened consume, within three months. Overall, the oil must be kept dark and cold. It may become cloudy and thicken when refrigerated or frozen. This is no cause for concern. Gently shake before use.
Softgels: To maintain the Rosita softgels in the best possible state for the longest time, keep your softgels in dark storage at room temperature, ideally ranging from 58°F to 78°F (15°C to 25°C).
Short temperature excursions whether hot or cold have little-to-no impact. Cold temperatures over prolonged periods of time can increase permeability of the gel and so they should not be refrigerated or frozen.
The shelf life of Rosita Extra Virgin Cod Liver Oil softgels is two years from the production date.
Should I take the liquid or the softgels?
Rosita Extra Virgin Cod Liver Oil is exactly the same regardless of the form you choose to purchase. Both the softgels and liquid have a full spectrum of omega fatty acids, high levels of vitamins A and D in their natural, unadulterated form and are raw and fresh.
In terms of the milligrams per bottle, the liquid is more economical. At roughly ½ a teaspoon a day, the liquid can last two months, whereas the bottle of softgels will last a little under one month.
Customers that choose to purchase the softgels do so mostly because they want to avoid the taste of fresh fish. The softgels are also convenient, as they do not require refrigeration and are great for travel. Lastly, the softgels have the added benefit of being made from fish collagen. Fish collagen is more easily absorbed than bovine collagen (which often comprises the softgel casing of other supplements on the market) and is supportive of skin, hair, nail and joint health.*
Why does Rosita liquid require refrigeration?
Codfish are known as thermal conformers. This means that their body temperature equals the surrounding water temperature. The deep waters that are home to the wild codfish that Rosita harvests are at a temperature of approximately 35.6°F to 30.2°F (2°C to -1°C) and colder. So by refrigerating your Rosita Extra Virgin Cod Liver Oil, you’re actually mimicking the temperatures of a living codfish’s natural environment.
Remember, Rosita is a raw, fresh, whole food. In the same way that many other raw, fresh, whole foods (like raw butter for example) require refrigeration to maintain freshness, so does Rosita.
My Rosita liquid is cloudy, why?
Rosita Extra Virgin Cod Liver Oil is a pure, real food product that’s raw, unprocessed and unadulterated with no additives. It also contains rich omega fatty acids. Because of these factors, it can get cloudy when refrigerated (although the cloudiness can vary from batch to batch). If your Rosita liquid is cloudy, just let it rest on the counter for a couple of minutes and give it a little shake before taking your dose.
Why are there little specks in my oil?
Rosita is unadulterated and does not strip out any of the nutrients. There may be little specks or particles floating in the oil. This may be waxes, stearins or other types of naturally-occuring fat. This is all completely normal and natural.
How is Rosita Extra Virgin Cod Liver Oil shipped?
Rosita Extra Virgin Cod Liver Oil liquid and softgels can be safely sent to you via UPS or FedEx Ground shipping that includes tracking.
Will shipping in warm weather affect the oil’s freshness?
Rosita can ship safely in all temperatures. And it retains its freshness, even it arrives warm or hot. This is because heat can only affect the oil’s freshness in the presence of oxygen. Your bottle of cod liver oil liquid is nitrogen-flushed (to remove oxygen) before sealing the bottle. The softgels are also sealed tight and completely protected from oxygen. This feature allows us to ship to you, even without ice packs!
Does Rosita Extra Virgin Cod Liver Oil require ice packs for shipping?
Rosita Extra Virgin Cod Liver Oil does not require ice packs for shipping. Rosita can ship safely in all temperatures, even when it’s really hot outside. This is because heat can only affect the oil’s freshness in the presence of oxygen. Your bottle of cod liver oil liquid is nitrogen-flushed (to remove oxygen) before sealing the bottle. The softgels are also sealed tight and completely protected from oxygen. This means you can order your Rosita without the addition of ice packs, and still be guaranteed a fresh product.
What are the ingredients listed on a bottle of Rosita liquid?
100% wild-caught cod liver oil (Gadus morhua), rosemary, organic vitamin E.
How many units of vitamin A and vitamin D are in one serving of liquid Rosita?
Rosita Extra Virgin Cod Liver OIl is a completely unrefined and unprocessed whole food, so the concentration of nutrients will always vary slightly from batch to batch due to naturally occuring seasonal shifts. Here’s the general amount of vitamins A and D in one teaspoon of the liquid, which is equal to one serving:
- Vitamin D3 - 395 IU per teaspoon,
- Vitamin A - 3,900 IU per teaspoon.
How many units of vitamin A and vitamin D are in the softgels?
A serving size of 3 Rosita Extra Virgin Cod Liver Oil softgels has:
- 127 IU Vitamin D3 per serving (3 softgels),
- 1,260 IU Vitamin A per serving (3 softgels).
An individual softgel has:
- 42.3 IU Vitamin D3 per softgel,
- 420 IU Vitamin A per softgel.
What is the source of natural vitamin E used as an antioxidant in Rosita?
The vitamin E is totally natural and obtained from non-GMO sunflower seeds. It is full-spectrum natural vitamin E, not isolated vitamin E.
It is free of common allergens.
- Gluten-free,
- GMO-free,
- Soy-free,
- Peanut-free, and
- Tree nut-free.
The amounts of natural vitamin E used are minimal, but essential for a completely raw and unprocessed oil to have a more stable shelf-life.
What are the softgels made out of?
The softgels are made out of 100% fish gelatin.
What are the differences between retinol and palmitate forms of vitamin A?
Retinyl palmitate (some manufacturers simply call it “palmitate”) is the main storage form of vitamin A in all fish livers, and is actually a combination of retinol and palmitic acid. Small amounts of “free retinol” may also be present in the liver.
With regards to vitamin A analysis of fish liver oils, there is no need to measure levels of palmitate (the predominant form) and retinol (the minor form) separately. When a fish liver oil sample is sent away for analytical testing to measure the total level of vitamin A, the laboratory will take the sample of liver oil and break all forms of vitamin A present in the liver oil (including the palmitate form) down to the retinol form. The next step is to measure the amount of retinol present and this measurement is therefore a measure of the total vitamin A content for that sample of fish liver oil.
Does Rosita contain both vitamin D2 and vitamin D3?
“Cod fish only contains vitamin D3. There is no vitamin D2 in either cod fish or cod liver oil.”
- Dr. Jacob Exler, Nutritionist, USDA Nutrient Data Laboratory
Rosita Extra Virgin Cod Liver OIl contains exactly what you would find present in the liver oil of a living wild codfish. Though vitamin D2 (ergocalciferol) and vitamin D3 (cholecalciferol) are available in a fish’s diet, vitamin D2 is almost absent in fish and fish liver oils. A possible explanation regarding why this is the case is provided below:
Forms of vitamin D available in a fish’s diet
Vitamin D2
- Phytoplankton: Microalgae live at the surface of the water and vitamin D2 is probably formed via sun exposure of provitamin D (ergosterol). This is supported by the fact that microalgae tested in August have a higher vitamin D content than in October and December.
Vitamin D3
- Phytoplankton: Microalgae have been reported by some to also contain (in addition to ergosterol and vitamin D2) both vitamin D3 and provitamin D3. There is evidence for microalgae (phytoplankton) as the basis of the food chain is the origin of vitamin D3 in fish. The occurrence of vitamin D3 in microalgae suggests that vitamin D3 may exist in the plant kingdom. And vitamin D3 has been identified in several plant species.
- Zooplankton: Zooplankton principally contains 7-dehydrocholesterol as their provitamin D content. Codfish also consume zooplankton (i.e. Copepoda). Levels of vitamin D3 may vary depending on the time of year and depth in the sea that the zooplankton are found.
- Fish skin: Although there is some evidence for the synthesis of vitamin D3 in the skin of fish, vitamin D3 synthesis is likely to be negligible or minimal because of the limited UVB-light in their natural habitats combined with low amounts of 7-dehydrocholesterol in fish skin.
Forms of vitamin D present in fish and fish livers
It is obvious from what has been written above that both vitamin D2 and vitamin D3 are available for fish in their diet, but vitamin D2 is almost absent in fish. The only form of vitamin D that has been identified at significant levels in fish oils (both body and liver) is vitamin D3. This is also supported by the work of world-famous vitamin D researchers, including Dr. Michael Holick, who has never found vitamin D2 (ergocalciferol) in cod liver oil or other livers oils including flounder, redfish, mackerel, eel and mullet liver oils. In addition, similar results have been obtained by the Institute of Aquaculture, Stirling University, where scientists sampled fish livers and a great deal of unrefined fish liver oils over many years.
The mystery why fish liver oils only contain vitamin D3
What remains a mystery to scientists and marine experts is why the only form of vitamin D that has been identified in fish oils is vitamin D3. You would expect vitamin D2 would be present especially if vitamin D2 produced in phytoplankton was concentrated in the food chain. The main explanations for this observation include:
- Fish have the ability to discriminate between vitamin D2 and vitamin D3 and therefore, only concentrate vitamin D3 in their visceral oils.
- Alternatively, fish or zooplankton that consume phytoplankton have a similar capacity as Paramecium to convert the side chain of vitamin D2 into the side chain of vitamin D3.
- There is also a possibility the bioavailability of vitamin D2 is lower than for D3 in fish.
More about vitamin D
Humans obtain vitamin D from diet and sunlight. There are two main forms of vitamin D: cholecalciferol (vitamin D3) and ergocalciferol (vitamin D2). The main source of vitamin D3 is from exposure to sunlight, which accounts for more than 90% of the body’s vitamin D requirement. Vitamin D3 is synthesized in the human skin by a photochemical conversion via ultraviolet B (UVB) exposure of provitamin D3 (7-dehydrocholesterol). Vitamin D2 is sourced from the UV irradiation of ergosterol, which is a steroid found in some plants, but largely fungi. Humans have a combination of vitamin D3 and vitamin D2 available to them from sunlight UV exposure (vitamin D3), egg yolks and oily fish (vitamin D3), fortified margarine, milk and breakfast cereals (fortified vitamin D2) and dietary supplements (vitamin D2 and vitamin D3). Please note that we do not recommend foods fortified with vitamin D.
Both vitamin D2 and vitamin D3 undergo similar enzymatic hydroxylation processes which convert them to the active metabolite 1,25-dihydroxy vitamin D2 or D3 (calcitriol). The liver and kidneys participate to make this active form of the vitamin that the body can use. However, there may be differences in their respective efficacies in raising serum 25(OH)D, which is a marker of vitamin D status. Differences may be due to their differing affinities for the vitamin D receptor. It is also thought that vitamin D3 is the preferred substrate for hepatic 25-hydroxylase.
Some studies indicate that vitamin D3 is more efficacious at raising serum 25(OH)D concentrations than is vitamin D2; and that vitamin D2 is 30% to 50% less effective than vitamin D3 in maintaining serum 25(OH)D levels.
Is Rosita free of common allergens?
- Gluten-free,
- GMO-free,
- Soy-free,
- Nut-free.
- Corn-free.
Does Rosita’s ancient method affect the nutritional composition of the cod liver oil?
The levels of nutrients (including fat-soluble vitamins A and D and omega fatty acids) present in the liver of a living wild codfish are not significantly different when compared to the oil obtained using the ancient production method employed by Rosita. Experiments and third-party testing at a certified, independent laboratory have been performed to prove this. Nature dictates the nutrient levels in the Rosita oils, which is exactly how it was for our ancestors hundreds of years ago. You can view the test results, which include nutritional information, here.
Is Rosita in triglyceride form or ethyl ester form?
The fats in Rosita Extra Virgin Cod Liver Oil are in their natural triglyceride (TG) form, which is what you would expect from completely unrefined cod liver oil. Scientific research confirms oils in their triglyceride form exhibit greater absorption over the synthetic ethyl ester (EE) form. This also means levels of omega-3 EPA and DHA will be greater in those consuming triglyceride-based fish oils than those consuming ethyl esters. Please also note that the natural triglycerides present in Rosita oils are natural triglycerides and not re-esterified triglycerides, which are basically ethyl esters that are reassembled back into triglycerides. Rosita does not have to recreate the natural triglyceride form because our oils are completely unprocessed.
Has Rosita Extra Virgin Cod Liver Oil been tested to ensure it is free from toxins?
European laws are now very stringent with regards to contamination of fish body and fish liver oils, and quite rightly so. Unfortunately, deception is a common occurrence and too many companies have been selling inferior oils which are detrimental to the health of adults and children.
We take testing very seriously and use a number of leading European Institutes to test our oils (Europe has very strict policies). Some of these include the Institute of Aquaculture, a leading internationally recognized aquaculture research institution based within the University of Stirling, Scotland (United Kingdom); and a number of independent Norwegian laboratories and institutions with great expertise in marine raw materials and products.
Rosita oils have been tested for:
- Persistent organic pollutants (POPs) including pesticides (such as DDT).
- Industrial chemicals (such as polychlorinated biphenyls, PCBs) and unintentional by-products of industrial processes (such as dioxins and furans).
- Heavy metals and microbiological contamination.
The test results for our cod liver oil have consistently come back with extremely low levels of contaminants, and are fully compliant with stringent European Commission rules on environmental pollutants. The deep fjords of Northern Norway are some of the cleanest and purest ocean waters in the world.
Rosita oils have also been analyzed by universities and government-linked research scientists, some of whom are involved in monitoring the quality of fish oils. In addition, our fish liver oils are currently used in scientific research at leading European universities.
Is there a certain certification, quality or control test Rosita Extra Virgin Cod Liver Oil goes through to authenticate its claims?
We at Rosita fully support quality control measures. We have been working hard to persuade the Norwegian authorities to implement stricter quality control guidelines.
Authenticity is also a major issue. For example, any company can say their product is made from cod livers, but may actually derive their oil from a mixture of fish species… and in some instances cod livers are never used! This has also been a major problem within the krill oil industry. Even more disturbing is the fact that 95% of all fish oil sold on the Norwegian market today comes from Chile and Peru, but is sold as “Norwegian” oils. The production of fish oil has led to serious environmental degradation and health problems along the coast of Peru. Emissions from fish oil factories go straight into the sea, destroying marine life. Emissions have also led to major health problems for the local people. We feel very strongly about deceitful practices and misleading advertising claims. And this is one of the factors that prompted us to create genuine Norwegian cod liver oil.
We have permission from the Norwegian government to market our wild and raw cod liver oil as genuine “Extra Virgin” simply because absolutely no heat, steam, chemical treatments or solvents are ever used during our ancient production process.
A world leading researcher on marine oils, Gjermund Vogt, recently said about Rosita extra-virgin ratfish liver oils: “A positive impression of the oils is that they are Norwegian and they have qualities that no other oils have.” Professor Livar Frøyland, who is a member of the Norwegian Scientific Committee for Food Safety (VKM), commented about the naturally occurring levels of vitamin D3 found in the extra virgin liver oils, saying it was absolutely fantastic. He also added that most other liver oils contain little, or no, natural vitamin D3 and added vitamin D2.
We are passionate about our genuine oils. That’s why we’re involved in every stage of cod liver oil production, from fishing and harvesting the wild codfish, to removing the livers, releasing and capturing the liver oil, and bottling the final product. We have complete control, from the sea to the consumer, which is the only way to ensure a superior quality and authentic product. This unique approach gives you added security and reassurance when you purchase the Rosita Real Foods brand.
How is Rosita Extra Virgin Cod Liver Oil processed from start to finish?
Here’s a detailed illustration and explanation of how your cod liver oil is is created, from fish to bottle using our gentle, chemical-free and heat-free ancient method.
What is done to ensure the freshness of your cod liver oil?
We have gone to great lengths and expense to create an antioxidant package that will keep Rosita Extra Virgin Cod Liver fresh during transit, storage and consumption. Due to cod liver oil’s short shelf life, Rosita drew upon the expertise of scientists, researchers and university professors to determine the proper antioxidants that were both effective, and most importantly, completely natural. Only tiny amounts of natural antioxidants are added, which is simply the bare minimum required to stabilize the oil. In addition:
- Temperatures are kept very low during bottling.
- No reactive metal ever comes in contact with the livers or the oil.
- Production is carried out in the absence of oxygen.
- The time between catching the cod and bottling the oil is very short (within hours).
- And smaller bottles are used to ensure the oil would be consumed long while it’s still of the utmost freshness.
Why is it necessary to add antioxidants to Rosita Extra Virgin Cod Liver Oil?
Rosita Extra Virgin Cod Liver Oil is the first fresh, wild and raw cod liver oil to be made available to the health consumer. It’s a true revolution in the cod liver oil world. Our cod liver oils are in exactly the same form as you would find them in the liver of a living codfish.
Just as a codfish begins the process of deterioration the moment it is removed from the ocean and dies, so does its liver and liver oils. Freshly produced raw cod liver oil (just released by the liver) is colorless or has a light golden color and a mild taste. To preserve the freshness of our completely unrefined oils, we add tiny amounts of full- spectrum natural (GMO-free) vitamin E (not isolated vitamin E) and the plant rosemary (Rosmarinus officinalis).
Rosemary, native to the Mediterranean region, has been used as a medicinal herb since 500 B.C.* It has long been associated with anti-inflammatory and antioxidant properties, and used to support digestion (when used in tea), circulation, memory and wound healing.
One method the ancient Norse people (including the Vikings) used to obtain cod liver oil was by steaming fresh livers that were placed on birch tree branches. Birch bark is well known for its antioxidant activity. Birch bark was even dried and ground by the Vikings and used as a very nutritious (and antioxidant-rich) addition to the diet.
Image #1 shows two bottles of wild and raw extra virgin cod liver oil freshly extracted using an ancient Viking technique that utilizes no heat, chemicals, solvents, pressure or liver decomposition. Extremely small amounts of natural vitamin E and Rosemary have been added to the bottle on the left. No antioxidants have been added to the bottle on the right.
Image #2 shows the same two bottles after sitting on a bench at room temperature for 24 hours. The bottle on the right is starting to turn a darker color. The pen in the background is still visible.
Image #3 again shows the same two bottles after sitting on a bench at room temperature for three days. The bottle on the left containing very small amounts of Rosemary and vitamin E is still as fresh as the day it was extracted while the bottle on the right has accelerated the process of deterioration. The pen in the background is no longer visible and the oil has gained a pungent smell.
Do the Rosita oils undergo any form of refining?
Definitely not. Conventional fish oil refining steps include degumming, bleaching, deodorization, neutralization and exposure to high temperatures. These processes commonly degrade the oil, damage the fragile unsaturated fatty acids, and remove the oil’s natural flavors, colors and nutrients. High-temperature distillation results in the loss of volatile nutrients and negatively affects levels of vitamins, cholesterol, unsaponifiable compounds, and polyunsaturated fatty acids. It also results in a distorted ratio of the omega-3 long-chain polyunsaturated fatty acids (DHA and EPA).
We believe that such oils are not natural and do not resemble the form of oil our ancestors once consumed. And that’s why Rosita is completely unprocessed.
Rosita handcrafted cod liver oil is 100% fresh raw cod liver fat produced without ever subjecting the liver or its oil to chemical treatments, solvents, rendering, steam, Peter Möller’s method, distillation, decomposition, putrefaction, alkali refining, bleaching, winterization or deodorization. Utilizing a natural extraction process first observed by the ancient Vikings, our process naturally exudes all of the oil from the liver. The resulting oils are then extensively analyzed for organic contaminants and freshness using predominant European Institutes.
Are the livers used to produce Rosita Extra Virgin Cod Liver Oil frozen?
No they are not. The coldest temperatures the livers are subjected to mimics the temperature the wild codfish liver is exposed to in the ocean during a specific season.
Why is Rosita’s cod liver oil given the moniker “Extra Virgin”?
The terms “virgin” and “extra virgin” are very different. The term “virgin” is used very loosely within the industry and has no precise definition. There are fish oil manufacturers who extract their oil at temperatures of approximately 212°F (100°C) and still call their final product virgin! This results in oil which is anything but natural. In many instances, the consumer is not aware of the quality and freshness of their cod liver oil and whether the oil is from genuine cod livers.
Rosita has been granted permission by the Norwegian authorities to market our cod liver oil as extra virgin. We’re also the only company who know of and use the exclusive Rosita ancient production method, which preserves valuable nutrients such as fat-soluble vitamins, natural sterols, antioxidants, and minor ingredients and produces authentic “living” oil. Absolutely no heat, steam, rendering, chemical treatments, alkali refining, bleaching, winterization and deodorization are ever used.
Our genuine Norwegian cod liver oil has been sustainably produced using ancient methods and craftsmanship which are rare in today’s cod liver oil world. The result is Extra Virgin Cod Liver Oil of exceptional quality, which is just as pure and authentic as it was for our Norse ancestors hundreds of years ago.
Is the Rosita ancient production technique the oldest Nordic method used for extracting liver oils?
The rarest of all methods employed by the ancient Norse people, and unknown in today’s cod liver oil world, is the ancient extraction method revived and used by Rosita for the very first time to produce our oils. This ancient method allows the fresh livers to naturally release the raw golden oil they contain without any intervention whatsoever.
There was also another method employed by the ancient Norse Vikings which was reserved only for ratfish (but unsuitable for codfish, whose liver and oil have a shorter shelf life). Rosita replicated this process for the very first time for all to see (below). The method involved hanging a ratfish up by its tail.
The fish is left to hang from its tail.
After a certain period of time has elapsed, pale/golden colored oil from its large oily liver will start to accumulate and drip from the end of its nose.
Pale/golden colored liver oil accumulating around the nose of the fish
The ancient Norse people and Vikings would collect this very special oil and consume it during times of stress and whenever they saw fit to do so. The oil is remarkably clear, pale/golden-colored and sweet smelling.
How important is sustainable fishing to the Rosita family in Norway?
Rosita Real Foods was actually featured in a documentary that’s streaming on Amazon Prime Video called “Revolution:Food.” It’s all about the farmers and fishermen who are revolutionizing today’s food industry with natural, sustainable practices. Sustainability is what defines the Rosita family. We have the utmost respect for the water and the harvest it yields. We live and teach gratitude for nature and the food on our tables, which all stems from sustainability.
Where are the cod for Rosita’s oil caught, and how are they caught?
The wild codfish (Gadus morhua) are sustainably fished from the crystal clear and pristine waters of the remote Norwegian fjords, near where the Rosita family lives in Dønna, Norway.
They are caught in the wild, far from any types of farmed fish.
To ensure total control over sustainability, quality and freshness of cod livers, we employ our own small artisan fishing boats, rather than commercial fishing boats.
The boats put out sea bird-friendly long lines baited with fat slices of frozen mackerel or herrings.
Here’s some history: The liver oil from deep-sea cod was highly prized and sought after by the ancient Norse people, who considered it to be the most potent in terms of therapeutic properties. It was also known to have a more smooth consistency.
Our ancestors were masters of deep-sea fishing and the Rosita fishermen today stem from that lineage. They are expert fishermen who live to carry out this grueling yet rewarding work.
(Manufacturers of commercial cod liver oil do not specifically fish for deep-sea codfish. They will often purchase codfish on the open market or from brokers, which can be problematic regarding the freshness, source, and even fish species.)
Line-caught fish are a much better alternative to fish that have been caught by destructive trawling methods. And sustainable, fresh cod tastes so much more clean and sweet!
As a sustainably fished and produced handcrafted cod liver oil, how stable is the availability of the codfish population?
We catch the cod carefully to protect the population and create our oils in small batches.
The Norwegian government sets quotas for the long-term survival of wild Atlantic cod in Norway. (Norwegian fisheries are a highly regulated industry with stringent quotas and licensing requirements.) We are not allowed to over fish, and the amount of fish caught must be recorded.
And, when we clean the fish on board, we throw out the other bits to the sea birds so that nothing is wasted.
It’s also important to note that Norway has long, harsh winters and some of the most rugged waters in the world with steep mountains lining the deep fjords, rocky coasts, and vicious waves at times. These waves can be very dangerous and so great care is required. When conditions get too bad, the fishing and harvesting of codfish has to be postponed. That means there are ebbs and flows in production of the cod liver oil. The best months for fishing, going back all the way to the Norwegian Vikings and Scandinavian fishermen, are in the months ending in “r,” which are characterized by a general lack of sunlight.
It is Rosita’s goal to meet demand while remaining true to the ancient Norse process for the creation of genuine wild and raw cod liver oil. We absolutely refuse to cut corners. Instead, we’ve expanded our production capabilities with more efficient measures, such as a modern bottling facility and a greater number of fishing boats. Further, our entire production line is made to reduce carbon footprint and even our oil cleaning procedure makes use of a simple natural substance from the ocean and does not involve chemicals that can cause contamination to the environment or heat.
Is Norwegian cod liver oil the best in the world?
No other place on earth offers such splendid conditions for making superior quality cod-liver oil as the coast of northern Norway. This is the birthplace and home of cod liver oil and the people here know more about true cod liver oil than anyone, anywhere else on this planet.
However, things have changed. Although Norway is still a remote and untouched land, our technological world has unfortunately had a negative impact on the quality of many cod liver oils. Other brands of commercial cod liver oils now commonly undergo intensive refining and processing to produce refined, bleached, deodorized and tasteless oils. Beneficial oil-soluble “minor ingredients” which should remain in the oil are removed by intensive refining. Some of the molecules present in these other brands of commercial oils change from being in a natural and beneficial form to an unnatural and possibly toxic form. Fat-soluble vitamins are typically destroyed during this processing. The result is a derivative cod liver oil which is not the same as the parent/real cod liver oil. This is akin to the way that the fuels used to power our motor vehicles are simply derivatives of naturally occurring, unprocessed crude oil found beneath the Earth’s surface. The crude oils and fuels derived from them are both very different.
Here’s more information on Rosita’s process versus how other commercial “natural” cod liver oil is made.
Other “natural” cod liver oil:
Even more worrying is the fact that 95% of all “Norwegian” fish oils sold on the Norwegian market today actually come from Chile and Peru! This also means that many of the foreign companies that think they are selling Norwegian oils are not. There are only four main factories in Norway that produce cod liver oil. They produce cod liver oil for about two months during the winter season (approximately 400 tons) and store this oil in tanks. The livers used to produce their oils are actually a mixture of farmed and fresh livers. Some of these livers are also sold frozen, in bulk, to cod liver oil manufacturers in Norway and to foreigners abroad.
The cod liver oil a consumer purchases may be between 1 to 2 years old! The oil sitting in these containers has to be refined before being sold because it has already gone bad and the reason it has gone bad is because cod liver oil is one of the most unstable fish liver oils. You simply cannot let cod liver oil sit for long periods of time and to retain its freshness. After these cod liver oils are refined, they then add back the vitamins lost through the refining process via the use of synthetic vitamins like vitamin D2 (ergocalciferol), etc.
We at Rosita feel strongly about these deceitful practices. It’s one of the primary factors that prompted us to create, for the very first time, the genuine raw Norwegian cod liver oil that our ancestors made and consumed.
Will your cod liver oil be affected by the radiation from the Japanese nuclear accident that’s covering the Pacific Ocean?
The fishing grounds used by Rosita for sustainably harvesting wild cod are very distant from Japan. Regular monitoring has shown that Rosita products are not at any risk of radiation.
This is another reason why it’s so important for a company that produces fish oils to harvest their own fish. This ensures the source of their cod livers is always from safe fishing grounds. It is even more important when you consider the fact cod species are found in many of the world’s oceans and some fresh waters, too.
Will you offer cod liver oil with flavoring?
Rosita Extra Virgin Cod Liver OIl does not contain any flavorings, nor do we plan on adding them in the future. The taste varies with the seasons and other biological factors. In general, it has a robust, fresh fish taste and is easy to take even for children. For those who would rather avoid the taste of fresh fish oil, we also offer Rosita Extra Virgin Cod Liver Oil in softgels. We want to be true to our ancient ancestors, who never consumed marine oils with added flavorings. The same holds true for many of the hunter-gatherer cultures.
What color is the actual liver oil contained in a living wild codfish?
Fresh codfish liver oil is a pale golden color
Imagine there is a tap connected to the liver of a living wild codfish that is freely swimming in the deep ocean. If you turned on this tap, the raw oil that would come out of it would be a pale golden color.
The real oil which is contained in the cells of fresh codfish liver is pale golden-colored and at times nearly colorless. It will also be anywhere from clear to cloudy in appearance, depending on a number of biological factors. This should not be confused with the pale oils obtained by refining which are very different.
Who should consider adding ratfish liver oil to their supplement routine?
- Real foodies searching for a rare and special nutrient profile.
- Those looking for a completely natural supplement that’s high in alkylglycerols.*
- Families with children on the spectrum (especially those with taste sensitivity to fish).*
- Spiritual people who want mental clarity and to decalcify the pineal gland (third eye), which helps with meditation, relaxation and rest.*
- Anyone striving to improve and support their overall health, including the brain, and immune and circulatory systems.*
How is Rosita Ratfish Liver Oil purified?
Each batch of Rosita Ratfish Liver Oil is gently filtered for contaminants without the use of high heat or solvents. This way ensures our fish liver oils remain raw and still yield extremely low levels of contaminants that are well below the strict European standards. Every batch of our Ratfish Liver Oil is tested for PCBs and dioxins to ensure the oils meet these standards. The results are posted here.
No other ratfish liver oil company goes through the effort and expense to provide this information.
Please note, as with all raw sea foods, there will be some contaminants. To offer a fish liver oil with zero contaminants would call for molecularly distillation (high heat) or deodorization of the oil. Both of these processes use very high temperatures which destroy the natural vitamin A, D and E in the oil. Rosita will never compromise the nutrient quality of the oil and the very low levels of contaminants provide the best option for those seeking natural, full- spectrum vitamins and omega fatty acids. Rosita fish oils will always be processed to be wild-caught, fresh and raw.
Is Rosita Ratfish Liver Oil the same as skate liver oil?
Some misinformed people claim that the skate fish is related to the same fish species as the ratfish (Chimaera monstrosa Linnaeus, 1758). The only similarity between the two is that they are both cartilaginous fish. Some are even claiming that the skate fish is the same fish under a different name.
Please know that Rosita Ratfish Liver Oil is completely different than skate oil. If you do the research, you will find there is just no comparison. Ratfish are distinct from skates, rays and sharks, with a different nutrient profile. In fact, there is no other fish like the ratfish on the planet. It is the only species in the family of Chimaera. It is one of the oldest fish species alive today.
How is the liver oil extracted from the ratfish?
The ratfish are exclusively harvested by local artisanal fishermen from the deep, crystal clear and unpolluted waters of the spectacular Norwegian Helgeland fjords. The fjords are framed by the rugged peaks of stunning mountain ranges, including the “Seven Sisters,” which are bathed in the light of the midnight sun, or set against the flickering Northern Lights which dance across the sky. The special natural environmental conditions of this gorgeous and unspoiled area come together in harmony, and contribute to the production of our high quality, truly unique oil.
First, the ratfish are wild-caught from small fishing boats with shelter decks, rather than commercial fishing boats.
Maintaining the natural quality of fresh-caught ratfish depends on careful post-harvest handling. As such, our fishermen are given strict guidelines, which include protecting them from exposure to temperatures greater than that of refrigeration, by icing the fish immediately upon harvest. These practices, rare in commercial fisheries, ensure that we receive the fish as fresh as the moment they were pulled from the waters.
Once harvesting is complete, the fish are quickly ferried to shore. They are then carefully inspected, and only fish of a certain age and size are used. The livers from larger size fish (fish beyond a certain weight) are never used to produce our oil.
To produce the freshest oil, the livers from healthy fish should be removed as soon as possible. We carefully remove and inspect the ratfish livers by hand, and only the best quality livers are selected for extracting the oil. The liver of the ratfish, when healthy and fat, is cream-colored, and so soft that a finger may be pushed through it. Leaner livers deepen in color to a reddish or nearly black hue – these are never used to produce our oil.
We make sure the livers are very carefully handled and never exposed to high temperatures or chemicals. Rough handling of the liver can cause it to bruise, promoting degradation of the liver and lowering the quality of the oil produced (only the undamaged, fresh livers are suitable).
Strict control of the temperature before and during the ratfish liver oil extraction process is also central to the quality of the final product.
The livers finally selected are carefully cleansed by washing in pure cold water. The wild harvested ratfish livers then undergo our proprietary, unique and completely natural extraction process. This natural process occurs as soon as possible after harvesting (to avoid any chemical changes from taking place), in a clean and odor-free environment.
Here’s how it works:
We create a gentle shift in temperature, from the icy cold water that the fresh livers are submerged in upon harvest, to below-room temperature. This shift naturally triggers the release of the oil.
This shift is also done in the total absence of heat, which protects the oil’s nutritional value. Just as important, we never subject the livers to chemical treatment, solvents, mechanical devices, rendering, Peter Möller’s method (steam), distillation, winterization, putrefaction, decomposition, alkali refining, bleaching, deodorization or freezing. We take every precaution to preserve the therapeutic properties of cod liver oil and its natural abundance of nutrients.
This process is so are because the only way to carry out this subtle, gentle temperature shift is by controlling the entire process from fish to bottle. Great care for the livers is taken throughout each step, so they maintain the optimal temperature that allows the fresh oil to naturally release. Please note that the process to release the ratfish liver oil is the same we use for our cod liver oil.
Immediately after the oil is released, it is very lightly filtered, with the help of a special patented method that uses gravity only, at low temperatures. This method simply removes particles of liver tissue, without refining the oil. In contrast, conventional procedures remove most of the healthy, fat-soluble vitamins, and therefore, commercial producers will add synthetic vitamins to make up for the loss.
What is a ratfish?
Ratfish liver oil is derived from the liver of a little- known group of shark relatives known as the Chimaeras (Chimaera monstrosa Linnaeus; common name: ratfish, rabbitfish or ghost shark). Chimaera takes its name from the Greek chimaera, a mythical monster with the head of a lion, body of a goat and the tail of a dragon. It is the offspring of Echinda and Typhon.
The Chimaeras are a primitive group of fish, with skeletons composed of cartilage instead of bone, dating back more than 300 million years. They are true survivors from before the dinosaurs, and have changed very little since. They may actually be the oldest and most enigmatic groups of fish alive today.
The ratfish is found in all the world's oceans, close to the bottom, at depths of 300 to 500 meters, with a reported maximum depth of 1,663 meters. These fish are almost half shark and half ray, with smooth skin, big sparkling green eyes designed to see in the dark depths, a rabbit-like face, and a small mouth surrounded by large lips. The nose of the ratfish is studded with electric sensors that can detect the faint electrical signals given off whenever bottom-dwelling prey – including crabs, snails, starfish, marine worms, urchins, clams, shrimp, and small fish – use their muscles, and is sensitive enough to detect their heartbeats. Ratfish bodies taper to an exceptionally long threadlike tail, and together with their rodent-like teeth designed for crushing the shells of their prey, has earned them the common name "ratfish."
There is limited fishing for this species of fish, which are not a popular food source, although they are edible and their white meat is tasty. However, following the removal of the liver, head and innards, there’ s actually less than 10% left for use as a food source. A major reason for this is the size of the liver, which makes up a large proportion of the total mass of the fish.
The liver of the ratfish constitutes approximately 60% of its total body weight, and contains an exceedingly high proportion of oil. The oil content is around 60%, but can in some instances be as high as 80% of the wet liver weight. The large oily liver plays an important role in the maintenance of neutral buoyancy.
What is the recommended dosage for Rosita Ratfish Liver Oil?
- Adults: Take 4 to 8 drops daily.
- Children and sensitive individuals: Take 1 to 4 drops daily.
- Infants (as approved by doctor): Take 1 to 2 drops in the mouth or mixed with breast milk.
- Breastfeeding moms: May consume the oil directly (2 to 5 drops daily) and allow the rich nutrients to pass through the milk to the baby.
Important: Rosita is premium, pure and potent. Therefore, it’s critically important to start slowly, with a lower dosage than recommended. For example, a very small dose every other day, or even once a week, until you can determine how the supplement affects your body and what feels right for you.
How do I store Ratfish Liver Oil?
Of all the edible oils, Rosita Ratfish Liver Oil is one of the most stable due to its naturally occurring vitamin E profile. Nevertheless, proper storage is critical in conserving the oil’s nutritional properties. Our oils are packaged in small, dark glass bottles to protect them from light and oxygen; thus preserving freshness.
Please store Rosita Ratfish Liver Oil in the refrigerator or freezer.
Shelf life for unopened bottles: 3 years from production date if stored in the refrigerator, 5 years if stored in the freezer.
Shelf life for opened bottles: Once opened, store Rosita Ratfish Liver Oil in the refrigerator and consume within 3 months. Replace cap after every use and return to the refrigerator to extend freshness.
Avoid any contact with the glass dropper (skin contact may cause degradation of the antioxidants).
Should Ratfish Liver Oil be taken on an empty stomach or with food?
Either way is fine, although taking with food can help with ingestion of the oil.
How is Rosita Ratfish Liver Oil shipped?
We send your Rosita products to you via UPS or FexEx Ground shipping that includes tracking.
Rosita Ratfish Liver Oil is shipped without cold packs or dry ice. Please note it is perfectly fine if your bottle arrives warm or hot because the oil naturally contains more than 33% alkylglycerol content, which is a natural antioxidant. Further, no additional antioxidants are added into the oil, as the ratfish produces and stores its own vitamin E, which also helps preserve the freshness.
What vitamins are present in Ratfish Liver Oil?
Vitamin A: Rosita Ratfish Liver Oil contains safe levels of the active form of vitamin A (also called retinol or preformed vitamin A).
Vitamin D3: It also contains natural vitamin D3 (cholecalciferol), rather than vitamin D2 (ergocalciferol or pre-vitamin D). The body also manufactures vitamin D3 from cholesterol, through a process triggered by the action of sunlight on the skin. Very few foods naturally contain vitamin D3. Good sources include fish liver oil and fatty fish like salmon. Other fish species (including other species of cod) do not contain measurable amounts of natural vitamin D3.
Low ratio of vitamin A to vitamin D: It’s also important to note that Rosita Ratfish Liver Oil has a naturally low ratio of vitamin A to vitamin D. This low ratio is unique among fish liver oils. Research suggests that a low ratio may allow vitamin D to exert its full protective physiological effects within the body.*
Vitamin E: Rosita Ratfish Liver Oil contains alpha-tocopherol, the biologically and chemically most active form of vitamin E, and by far the most abundant lipid-soluble antioxidant in humans.
Here’s more information about the nutrients and health benefits of Ratfish Liver Oil.
What is the texture of Ratfish Liver Oil?
Rosita Ratfish Liver Oil contains a full spectrum of omega fatty acids. Unlike refined fish oils, Rosita contains many different fatty acids that thicken and separate when refrigerated. When chilled, the stearins, waxes and triglycerides may appear as particles, as a film, cloudy, or thick like gelatin. This is normal for fresh, wild and raw fish liver oil. You may take the bottle out of the fridge three to five minutes before use to allow them to evenly mix and to permit the efficient use of the dropper.
What does Ratfish Liver Oil taste like?
Rosita Ratfish Liver Oil has a mid, light, buttery taste. This oil is ideal for those with sensitivities to the taste of fish and also for children, since only drops are required on a daily basis.
Why doesn’t Rosita Ratfish Liver Oil require added antioxidants to help maintain freshness?
Compared to cod liver oil, ratfish liver oil is naturally lower in polyunsaturated fats. It is also high in its own naturally occurring vitamin E, which provides antioxidant properties that maintain freshness. Cod liver oil contains no measurable amounts of naturally occurring vitamin E (This is why a tiny amount of full-spectrum, organic vitamin E and organic rosemary herb are added to Rosita Extra Virgin Cod Liver Oil).
What is the testing for Rosita Ratfish Liver Oil?
Each and every batch of Rosita Extra Virgin Ratfish Liver Oil is third-party tested in a microbiological laboratory and certified to meet strict European regulations for potency and purity. View the results here.
Isn’t ratfish a bottom-feeding fish that would absorb more contaminants (e.g. dioxins, lead, mercury, etc.) than most fish?
Ratfish are bottom feeders residing at depths of up to 2,000 meters. Crude ratfish liver oil (directly from the liver) does test above the European limits for contaminants, and it is not advisable to consume it, even for those in Norway who are able to obtain fresh ratfish livers.
Rosita uses an exclusive, patented heat-free and chemical-free natural method to purify the oil so it’s safe for consumption. This method makes use of a naturally occurring substance in the ocean that has the ability to attract and bind to contaminants like a magnet. This substance, together with its bound contaminants, can then be gently removed from the oil in a similar way that sediments are removed from a fine wine.
Unlike most fish liver oil producers, who use molecular distillation (high heat) to remove/reduce contaminants, a process that destroys precious vitamins A and D, the Rosita process does not damage the vitamins. It keeps them intact just as they are in the fish’s liver. Once the ratfish oil has passed through the contaminant filter, its tests below the strict European guidelines.
It’s important to keep in mind that no fish you eat (nor, for that matter, any beef, chicken or pork) is completely free of dioxins and contaminants unless it is highly processed, which destroys the nutrients.
What is so unique about ratfish liver oil?
The ancient Vikings and Scandinavian fishermen considered the oil derived from the large oily liver of the ratfish as a precious gift from the sea. They used this rare oil for maintaining general health as well as for specific purposes, including wound healing and the treatment of general debility, infections, irritations of the respiratory and alimentary tracts and glandular disease.* It was also applied topically to decrease inflammation and pain, to promote the healing of wounds, and as a skin elixir.*
Legend has it that the Vikings would hang a ratfish up by the head, and after a period of time, the liver oil would start to drip from the end of its very long tail. The Vikings would then collect this very special oil. Unlike cod, ratfish are mainly confined to the deep waters and as such, were not in plentiful supply for the Vikings, who considered the oil from their liver to be a very rare and precious gift from the sea, naming it “gold of the ocean.”
Ratfish are a non-commercial bycatch deep-water fish species which are seldom caught. The average harvest by our fishermen, for each net, is less than one fish! As a result, Rosita Ratfish Liver Oil is a limited resource.
There are additional reasons for the low production rate, which are related to our own strict demands for producing the highest quality fish liver oil possible.
We have limited harvesting in our protected and remote waters to special times of the year, when the fish flourish and thrive and produce livers that are beautiful. This, in concert with the time-consuming ancient extraction techniques and extremely low extraction temperatures (at the expense of yield), makes our production very specialized and limited.
In contrast to highly processed refined fish liver oils, our wild extra-virgin handcrafted ratfish liver oils follow the natural rhythm of changes in seasons and feeding cycles of the fish. Therefore, each batch may vary slightly in appearance, flavor and nutrient levels, but will always retain its original nutritional integrity.