One of the things with fish oil to be aware of is the source of the fish oil. While in theory, fish oil is anti-inflammatory it can actually have the opposite effect if the source is poor. I have had an inflammatory reaction to a couple of fish oil supplements, including Krill. Clean water fish oil supplements are the key. People who react badly to bottom feeding fish like Shrimp and Crab will experience a similar reaction to a bad fish oil supplement.

Please keep this in mind: https://www.sciencenews.org/blog/sci...h-oil-polluted