The best food sources of alpha-linolenic acid (ALA), also known as omega-3 fatty acid, include:fatty fish such as salmon, mackerel, and sardines;
walnuts, flaxseeds, and chia seeds;
soybeans and their products, like tofu and edamame;
dark leafy greens, such as kale and spinach;
vegetable oils, like flaxseed oil and canola oil.
