Fish oil is an excellent source of the Omega 3 and 6 essential fatty acids (EFA) which are vital for human health; any deficiency in these acids eventually leads to deterioration and death since the body cannot synthesize them on its own- they must be consumed in the diet. Udo's book is an excellent reference for the gory details behind fats and their importance, I highly recommend it.
Metabolic Pathways of Essential Fatty Acids
As for fish oil and DHA, you should be very cautious when choosing a brand since the EFA's are extremely delicate molecules which are easily destroyed by heat, light, and exposure. Freshness is imperative for the oil to not become rancid and thus toxic to the body, and the following brands provide what I have researched and tested (we use) to satisfy the requirements of freshness, quality, and sustainability:
Coromega is a natural source of Omega-3 fatty acids from pharmaceutical grade fish oil. All impurities have been removed through a series of sophisticated processes, including molecular distillation, to provide a pure and concentrated source of Omega-3. Coromega is a proprietary emulsified form of Omega-3 fatty acids, EPA and DHA, protected and stabilized with vitamins C and E. Natural orange flavor. Naturally colored.
Coromega Orange Flavor, 90 count - $22.50
or try a Free Sample !
Nordic Naturals was ranked #1 out of the top 10 fish oil brands in Norway for highest concentration, freshness, and purity. This award is an honor since the products in Norway are monitored by the Norwegian Medicinal Standard, which have the most stringent requirements in the world.