What is the basis for the ~3:1 EPA: DHA ratio in the EFA Focus for Kids™ formulation?
A ~3:1 EPA:DHA ratio is the highest EPA:DHA ratio found in nature. Such an unusually high EPA:DHA ratio has been found in small fish such as sardines and anchovies harvested from particular areas during certain months of the year. A ~3:1 proportion of marine fatty acids (EPA and DHA), with a smaller proportion of the plant-derived fatty acid GLA, was utilized with favorable results in the Oxford-Durham study of EFA supplementation in children. “Ordinary” fish oils have much lower EPA: DHA ratios, typically 1.5:1 or less.