CHARLESTON, S.C. (WCBD) – An international clinical trial finds prescription-strength fish oil may not help your heart.

Steven Nissen, MD, is a cardiologist at Cleveland Clinic and led the research team.

“A very high-dose, of a very powerful fish oil, a very effective fish oil, didn’t produce any reduction in the risk of heart attack, stroke or death,” said Dr. Nissen.

“That was the really important finding from the trial. Fish oil simply doesn’t produce a cardiovascular benefit.”

Researchers looked at data from more than 13,000 people around the world being treated with a statin, which lowers cholesterol levels in