Some of us are intereted in veganism, no animal DNA in our supplements. Considering this I have concluded the following:
Foods need not be rocket-science. Krill is at the bottom of the marine food chain. Do they manufacture omega 3? They do NOT; they eat it. What do krill fish eat? Marine phytoplanton ... which is extremely rich in omega 3s ... much more so than flax, hemp, chia - land plant oil sources.