Rosita Handcrafted Ratfish Liver Oil™

One of Nature's Rare Wonders

Ratfish liver oil is NOT Skate liver oil

Our team members here at Rosita Ratfishoil® are astonished to see the amount of dis-information about ratfish liver oil, and other liver oils for that matter, put out there on the Internet. It is amazing to see how far some companies are willing go to sell their products by deceiving people who simply want to improve their health. Some of these sellers purchase their livers on the open market or from brokers - and then persuade others that they are selling the “gold standard!” They try to achieve sales by generating lies and dis-information about their products and other products on the market. A perfect example of this is the confusion surrounding ratfish liver oil and skate liver oil. Their customers have been told, or more appropriately convinced into believing that skate liver oil/skate fish liver oil is the same as Rosita Ratfish Liver Oil ™.

Some dis-informed people deliberately 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 may be that they are both cartilaginous fish species. Some are even claiming that the skate fish is the same fish under a different name. Any marine zoologist would tell you that this is absurd!

We at Rosita Ratfishoil® KNOW we have superior genuine products, and we must admit that we should actually be happy for all the publicity this product gets globally. It goes to show that we indeed have a great product when others use our product and name in their marketing.

Rosita Ratfishoil® (which includes its brand “Rosita Real Foods™”) are the only official producers of authentic artisan extra-virgin fish liver oils. Our extra-virgin oils have no similarities whatsoever to the processed or so-called fermented products out there. Our oils are genuine Norwegian, obtained from fish that we ourselves sustainably harvest from the remote wild, and extract using the rare methods and craftsmanship employed by the ancient Norse people. These are “living oils” derived from beautiful fresh livers with all their naturally occurring nutrients intact. Everything we do are done with respect to the practices of our ancient ancestors.

Our company ethos is to preserve tradition, be in harmony with nature and serve our world with superior products. And at the same time to always seek truthful and honest ways of doing business.

A substantial proportion of the money we have generated from our Rosita Ratfish Liver Oil™ since starting have been used to develop new products. Through our time in research and development we have attracted people and companies globally with the same ethos and passion for genuine artisan methods and the need to preserve tradition. As a result of our association with larger companies, doctors, scientists, Universities and government-linked institutions, we have grown into a company with the capability of expanding our very unique product portfolio. Consequently, we have launched the first of our new products – Rosita Real Foods™ Artisan Extra-Virgin Cod Liver Oil. The rarest and most authentic cod liver oil made available to the general public for the very first time in modern history. Rosita Extra-Virgin Cod Liver Oil goes back to rediscover our lost ancient traditions.

To round off this article, we have produced for educational purposes a short piece depicting the differences between the two fish species as it is given through different and more official websites on the Internet.





(No family links to sharks, rays or skate fish)
Chimaera Monstrosa
(Only 1 species)

Ratfish is a deep water bottom feeder in the North Atlantic with a fish like body, large eyes and a thin and long tail.

RatfishskullSkeleton with a characteristic skull with teeth like a rat or rabbit.

Liver weight is about 60% of total body volume.

A unique fish species not related to any other known species.

This fish species also carries the name Rabbit fish.

Only harvested as a by-catch. No commercial fishing for this species.

Not the same as «ghost shark» from the fish species of Callorhinchus milii - See the following link: 

Links to Internet articles about Chimaera Monstrosa:




More than 100 species

Skates live in cold seas globally and are primarily bottom feeders. The eyes of skates are located dorsally, on the upper surface of the fish, while the mouth is located on the underside.

Skates are related to sharks. Skates have skeleton of cartilage rather than bone. Most skates have bodies that are flattened from top to bottom. Their large pectoral fins, often called wings, are attached to the head.

Liver weight varies from 5-10% of total body volume.

The common skate (blue skate) is no longer as plentiful as it used to. It is now on the Red List for endangered fish species.

There are about 100 species of skates.

Links to Internet articles about Skate fish:


Please also visit our information website at for more in-depth information about Rosita Ratfish Liver Oil™ and also visit and to learn more about our other products.


Helgeland, Norway September 8 th 2014
Rosita Ratfishoil®

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