2016. The microbiota of freshwater fish and freshwater niches contain omega-3 fatty acid-producing Shewanella species.

Is taking omega-3 the same as eating fish?

According to the AHA, if you want the full omega-3 fatty acid health benefits, then fish reigns supreme. "Studies have shown that fish, in addition to providing cardiovascular benefits, is loaded with healthy vitamins and minerals as well as protein that you just can't get from fish oil supplements," says Dodson.

Does white fish have omega-3?

Oily fish are the richest source of long-chain omega-3. Some white fish and shellfish also contain long-chain omega-3, but not as much as oily fish.