Fermented cod liver oil is made by fermenting the livers of codfish, while non-fermented cod liver oil is made by simply extracting the oil from the livers. Another important factor to consider is ...

Another important factor to consider is the dosage ... 2. Carlson – Cod Liver Oil, 1100 mg Omega-3s, Liquid Fish Oil Supplement, Wild-Caught Norwegian Arctic , Sustainably Sourced Nordic Fish ...