Omega-3 fish oil supplements benefit heart patients, reveals largest meta analysis
In a recent meta-analysis from Harvard T.H. Chan School of Public Health and Brigham and Women’s Hospital, researchers have proved the benefits of omega-3-fatty acid supplementation in reducing the risk of most cardiovascular disease (CVD) outcomes, including heart attack, death from coronary heart disease, and death in heart patients. The findings were published in the Journal of the American Heart Association (JAHA).
This meta-analysis included three recently completed large-scale trials, which increased the sample size by 64%. The total population analyzed by Hu and colleagues included more than 120,000 adults in 13 randomized trials worldwide. The analysis included the VITAL trial, the largest randomized trial of omega-3s till now.
The findings showed that people who took daily omega-3 fish oil supplements, compared with those who took a placebo, lowered their risk for most CVD outcomes except stroke, including an 8% reduced risk for heart attack and coronary heart disease (CHD) death. The association was particularly evident at higher doses of omega-3 fish oil supplementation. This finding may suggest that marine omega-3 supplementation dosage above the 840 mg/day used in most randomized clinical trials may provide greater reductions in CVD risk. Given that several million people experience these CVD events worldwide each year, even small reductions in risk can translate into hundreds of thousands of heart attacks and CVD deaths avoided, according to the researchers.
“Although public health recommendations should focus on increasing fish consumption, having an overall heart-healthy diet, being physically active, and having other healthy lifestyle practices, this study suggests that omega-3 supplementation may have a role in appropriate patients,” said senior author JoAnn Manson, chief of the Division of Preventive Medicine at Brigham and Women’s Hospital and professor in the Department of Epidemiology at Harvard Chan School. Manson is also the Director of the large-scale VITAL trial of omega-3s.
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