To address your concern, here is a guide to vegan Omega 3 supplements -- from PETA (including, for example, walnuts): https://www.peta.org/living/food/vegan-rec

To address your concern, here is a guide to vegan Omega 3 supplements -- from PETA (including, for example, walnuts): https://www.peta.org/living/food/vegan-recipes-packed-with-omega-3s/ https://www.peta.org/living/food/vegan-recipes-packed-with-o... Fish get their Omega 3s from algae; people can get Omega 3s directly from algae as well; see: http://www.berkeleywellness.com/supplements/other-supplements/article/algal-oil-omega-3s http://www.berkeleywellness.com/supplements/other-supplement... "Derived from various types of micro-algae, algal oil is gaining popularity among vegans and other people who want a source of long-chain omega-3 fatty acids (EPA and DHA) but don’t want to get them from fish or fish-oil supplements. But it’s also gaining buzz because it’s a more sustainable alternative to deriving oil from fish (due to declines in certain fish populations) and doesn’t pose the risk of contamination with pollutants, such as PCBs, that are found to some degree in many fatty fish."