Freshness & Potency - Purity Guaranteed. Dietary Supplement. Heart Health. Brain Function. Immune Support. Carlson - Providing the Finest Norwegian Omega-3s Since 1982. Gluten-Free. No Artificial Preservatives. An FDA Regulated Facility. Friend of the Sea. Cod Liver Oil Gems Super 1,000 contains 1,000 mg of cod liver oil, which provides 250 mg of omega-3s plus vitamins A and D3. The beneficial omega-3s EPA and DHA support healthy cardiovascular, cognitive, and immune function. Cod Liver Oil Gems are sourced from the highest quality wild-caught Arctic cod off the coast of Norway using traditional, sustainable methods.