What is the difference between Carlson fish oil and cod liver oil?
Both provide the omega-3 fatty acids EPA and DHA, but Carlson cod liver oil also contains vitamins A and D3. Regular Carlson fish oil generally provides EPA and DHA without these added vitamins. Amounts and ratios vary between formulas, including the levels of EPA, DHA, vitamin A and vitamin D3.
Do Carlson liquid fish oils need to be refrigerated?
Yes. Carlson recommends refrigerating its liquid fish oils and liquid cod liver oils after opening to help maintain freshness. Unopened products should be stored according to the storage directions printed on the individual product label.
Where does Carlson source the fish used in its omega-3 oils?
Carlson uses several fish species depending on the formula, including Arctic cod, Atlantic salmon, sardines, anchovies, mackerel and tuna. Carlson states that its omega-3 oils are made from sustainably sourced fish and that Carlson and its suppliers hold Friend of the Sea certifications.