Omega-3 supplements don't provide as much benefits as it claimed on the internet
nccih.nih.gov
nccih.nih.gov
[1] - https://www.youtube.com/watch?v=-f-CFQxaUY4 [video]
A reasonable point is made indirectly that eating fish may be better than taking supplements. I suspect in part it's because of oxidation and substitution in concentrate.