Shirley you jest, but many years ago when my triglycerides were immeasurable off the scale, my doctor told me to take the maximum dosage of Fish Oil Omega 3 supplement. That's 4800 mg per day in those giant gel caps. I just had a semiannual checkup a few days ago (on a ZOOM session) and I confirmed that I was taking it faithfully still. So it is actually not a health nut trend.
https://www.mayoclinic.org/drugs-supplements-fish-oil/art-20364810