From DIane Benisek, Martek High DHA eggs is a current hot research item. Regardless of which high DHA feed the chicken is fed (fish meal, algae, or organ meat products), the chicken produces DHA as phospholipid in the egg. Fish do not appear to make DHA from the precursor, linolenic acid, but get their DHA from consuming algae and other fish. The algae from cold, deep water are the highest in DHA, and fish from cold, deep water tend to be the best sources of DHA. Fish that are grown in farms and fed grain-based diets (no algae) have lower DHA contents than the naturally raised fish.