You can get
omega 3 without fish through the following dietary sources [
1].
EPA/DHA:
ALA:
Brussels sprouts (135 mg per ½ cup cooked)
Flaxseeds (2.4 g per tablespoon)
Walnuts (2.6 g per ounce)
Chia seeds (5 g per ounce)
Hemp seeds (1 g per tablespoon)
Beans (100 mg per ½ cup)
Edamame (280 mg per ½ cup)
The IOM has established AIs (adequate intakes) for adult males as 1.6 g/day and 1.1 g/day for adult females [
2]. However, since your body can’t produce all of the omega-3 fatty acids on its own, you must rely on dietary sources and/or supplements to meet your needs.