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Rosita Ratfish Liver Oil is a precious, ancient whole food supplement sourced from the wild-caught ratfish (Chimaera monstrosa) of the pristine Norwegian fjords. This is the only Ratfish Liver Oil in the world. Exceptionally rich in naturally occurring alkylglycerols, omega fatty acids, phytosterols, and fat-soluble vitamins, it is extracted using the gentle Rosita Method with no heat, chemicals, or mechanical pressure. Mild, buttery taste.
On UK Mainland orders over £50
Rosita Ratfish Liver Oil is one of the most extraordinary and unique nutritional oils you will ever encounter. This is the only Ratfish Liver Oil in the entire world, sourced from the ancient ratfish species known scientifically as Chimaera monstrosa, a prehistoric creature that has existed for over 400 million years in the pristine deep waters of the Norwegian fjords. With its striking blue eyes, distinctive spots, and long whip like tail, the ratfish is a truly remarkable species, and the oil derived from its liver has been treasured by Norwegian Vikings and Scandinavian fishermen for centuries as the gold of the ocean.
What makes Ratfish Liver Oil so special is its extraordinarily rich nutrient profile, which is quite different from cod liver oil or any other fish oil on the market. The most notable constituent is its exceptionally high concentration of alkylglycerols, naturally occurring ether lipids with concentrated antioxidant properties. Independent laboratory testing has revealed that Rosita Ratfish Liver Oil contains up to 33 percent alkylglycerols, which is significantly higher than shark liver oil, the other well-known source of these bioactive lipids. Alkylglycerols are biologically active compounds that have been the subject of considerable scientific interest for their role in supporting the immune system and protecting the body from free radical damage.
Beyond the alkylglycerols, Rosita Ratfish Liver Oil contains a full-spectrum of omega fatty acids including omega 3 (with up to 24.4 mg per gram of EPA and 15.7 mg per gram of DHA), omega 4, omega 6, omega 7, omega 9, and omega 11. This breadth of fatty acid diversity is truly exceptional and reflects the fact that the ratfish liver comprises up to 60 percent of the animal's total body weight. The oil also contains naturally occurring phytosterols including campesterol, stigmasterol, and avenasterol, along with quinones, vitamin A in the active retinol form, vitamin D3 in the most bioavailable cholecalciferol form, and natural antioxidants such as squalene and vitamin E.
The extraction process is as remarkable as the oil itself. Rosita employs only the gentle Rosita Method, a cold process technique that uses ancient principles given by nature to separate the oil from the liver. There is absolutely no heat, no chemicals, and no mechanical devices used at any stage. The oil is then purified through a natural filtration process that reduces the fishy tasting proteins while retaining all the beneficial fats and nutrients. The result is a pure, 100 percent whole food oil with a mild, buttery taste that is notably less fishy than cod liver oil. Many people find it surprisingly pleasant, and it is particularly well suited to children and those with taste sensitivities to fish.
Because Ratfish Liver Oil is a fat-soluble, real food supplement, the nutrients are absorbed along with healthy fats in your diet and can be stored in your body's fatty tissue for long-term use. The oil is so naturally stable, with its unique lipid profile and high concentration of natural antioxidants, that nitrogen flushing is not even needed. This remarkable stability also gives it an excellent shelf life. Unopened bottles stored in the refrigerator will keep for three years from the production date, and up to five years if stored in the freezer. Once opened, the oil should be stored in the refrigerator and consumed within three months.
Rosita recommends their signature low and slow dosing approach. Adults should take 18 drops daily, but it is essential to start with a much lower dose, perhaps just a few drops every other day, until you determine how the supplement affects your body. The oil can be mixed in cold food or beverages. For children and sensitive individuals, the recommended dose is 6 drops daily, again starting lower. The oil is easily absorbed and the taste dissipates quickly.
The ratfish is distinct from skate fish, rays, and sharks, with a completely different nutrient profile. While other fish oils may claim to contain alkylglycerols, independent testing has shown that they do not compare to Rosita's nutrient profile and alkylglycerol content. Each batch is third-party tested in a microbiological laboratory and certified to meet strict European regulations for strength and purity. The oil is free from mercury, lead, cadmium, microplastics, toxins, radiation, bacteria, and other contaminants.
The unique lipid profile of ratfish liver oil, including its omega fatty acids and alkylglycerols, contributes to cellular longevity and whole body resilience in ways that conventional fish oils cannot match.
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