Omega-3 supplements prevent heart disease
evidence
The Claim
Many people believe that taking omega-3 supplements can significantly reduce the risk of developing heart disease. This belief is based on the assumption that omega-3 fatty acids improve heart health by reducing inflammation and lowering blood cholesterol levels.
Origin
This myth stems from early observational studies and the heart-healthy reputation of diets rich in fish, which are high in omega-3 fatty acids.
What Science Says
Recent meta-analyses and randomized controlled trials (RCTs) have shown mixed results. For instance, a 2018 meta-analysis in JAMA Cardiology found no significant reduction in heart disease risk from omega-3 supplementation. Some studies suggest minor benefits for certain populations, such as those with high triglycerides, but the effect sizes are generally small.
Verdict
Mostly False
Sources
- PMID:32114706 Omega-3 fatty acids for the primary and secondary prevention of cardiovascular disease.
- PMID:36103100 Efficacy and Safety of Omega-3 Fatty Acids in the Prevention of Cardiovascular Disease: A Systematic Review and Meta-analysis.
- PMID:31567003 Marine Omega-3 Supplementation and Cardiovascular Disease: An Updated Meta-Analysis of 13 Randomized Controlled Trials Involving 127 477 Participants.