It has been suggested that supplements containing krill oil may be more effective at increasing the levels of the omega-3 fatty acids EPA and DHA in red blood cells – the Omega-3 Index – than fish oil.
Improvements in brain white matter may be a good predictive measure of omega 3 benefit in depression.
This meta-analysis is one of the first to use blood biomarkers instead of self-reported consumption to determine benefit to coronary heart disease risk.
Docohexaenoic acid (DHA) is important for development of the central nervous system in mammals. There is a growth spurt in the human brain during the last trimester of pregnancy and the first postnatal months, with a large increase in the cerebral content of DHA.