I like to get my omegas from the following sources, no fish needed!
- hemp hearts (complete protein, goes best with oatmeal for breakfast, on salads, or in soups for an extra bit of nutty / fatty flavor)
- pumpkin seeds (also good source of iron, iirc)
- algae-based supplement (currently taking an omega3 + vit D + vit K combo capsule from nordic naturals)
It's really surprising how many people don't realise where omegas come from and just default to "more fish". Fish get omegas from alge. Simply skip the middle man and all the nasty side effects that has in the form of animal exploitation and harmful substances for humans they contain.
Fish metabolize and concentrate the oil.
Cows eat grass for protein, we can't really skip the middle man and eat grass to get protein.
I don't know if it's true, but it wouldn't be unusual for there to be benefit from getting omega 3 from fish rather than algea because of something like this. AFAIK, we mostly only know about the benefits of eating fish.
Fish contains a lot of microplastics. Algae-based omega oils do not.
Note that one of the authors received funding from Big Walnut.