After a heart attack, it is known that the hearts shape and function can be changed, which is known as post-heart attack re-modeling and is linked to poor recovery. Fish oil is known for its impact on helping people maintain a healthy heart, although research is limited on a damaged heart.
In a randomized clinical trial, researchers compared a placebo to 4 grams of fish oil daily for 6 months as part of a recovery treatment following a heart attack. The findings showed a decrease of 5.8% in left ventricular systolic volume index and 5.6% decrease in scarred connective tissue formation in the non-damaged heart muscle. This research shows that taking 4g of fish oils after a heart attack for recovery could assist in the treatment of improving cardiac remodeling and reduce heart failure or death.