Chia have the highest known plant source of omega 3 fats which are known as essential fatty acids (EFAs), meaning we need them to be supplied by our food. EFAs are essential for our nervous system and brain, our cardiovascular system, skin and also our joints. Chia has 8 x the omega 3 that salmon has.
Unlike flax/linseeds and fish which also contain these fats, chia is very stable due to its high antioxidant value. Ground flax seeds and flax oil must be kept strictly refrigerated and used very quickly (in 1-2 weeks) or it goes rancid. Chia has 4 x the antioxidant strength of blueberries and the black chia seeds will have more antioxidants than the white.