The Claim

Daily supplementation with 1 gram of marine omega-3 fatty acids (460 mg EPA and 380 mg DHA) for a median of 5.3 years does not significantly reduce the incidence of major cardiovascular events (myocardial infarction, stroke, or cardiovascular death) in healthy adults aged 50 and older.

Source: Marine Omega-3 Fatty Acids and Prevention of Vascular Disease and Cancer

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
74score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Cause and effect
1 study reviewed
In plain English

Taking a daily omega-3 supplement for about five years doesn't seem to lower the risk of heart attacks, strokes, or heart-related death in healthy people over 50.

See the scientific wording

Daily supplementation with 1 gram of marine omega-3 fatty acids (460 mg EPA and 380 mg DHA) for a median of 5.3 years does not significantly reduce the incidence of major cardiovascular events (myocardial infarction, stroke, or cardiovascular death) in healthy adults aged 50 and older, based on a hazard ratio of 0.92 (95% CI: 0.80–1.06; p=0.24) from a large randomized trial involving 25,871 participants.

What the research says

1 study
  1. Study: Marine Omega-3 Fatty Acids and Prevention of Vascular Disease and Cancer

    This big study gave people a daily fish oil pill for over five years and found it didn’t lower their risk of heart attacks, strokes, or dying from heart problems compared to those who took a sugar pill.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.