Omega-3 fatty acids are believed to help reduce the risk of heart disease and also to promote healthy skin. It also used along with diet and exercise to help lower levels of a certain blood fat (triglyceride) and to raise levels of "good" cholesterol (HDL)
According to recent European Medicines Agency report omega-3 fatty acid medicines are not effective in preventing further heart problems after a heart attack.
Omega-3 fatty acid medicines should no longer be used for reducing the risk of heart disease . However, they can still be used to reduce levels of certain types of blood fat called triglycerides.
Omega-3 fatty acid medicines have been used after a heart attack, in combination with other medicines, in several EU countries since 2000, at a dose of 1 g per day. Previously, it was believed that some benefits in reducing serious problems with the heart and blood vessels.
It concluded that, although there are no new safety concerns, the effectiveness of these medicines in preventing recurrence of problems with the heart and blood vessels has not been confirmed.
Ref:
https://www.ema.europa.eu/en/medicines/human/referrals/omega-3-acid-ethyl-esters-containing-medicinal-products-oral-use-secondary-prevention-after
https://www.bfarm.de/SharedDocs/Risikoinformationen/Pharmakovigilanz/EN/RV_STP/m-r/omega-3-fettsaeuren.html
