Not Enough Fish in the Sea
This shouldn’t surprise us. During the Palaeolithic, human beings ate roughly the same amount of omega-3 fatty acids as omega-6s(10). Today we eat 17 times as much omega-6 as omega-3. Omega-6s are found in vegetable oils, while most of the omega-3s we eat come from fish. ..
However … we probably do not have a sustainable supply of long chain omega 3 fats.”(14) Our brain food is disappearing.