Analysis Version
v1
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causal
Analysis v1
Strong Support

Taking fish oil supplements every day might lower your chances of having a heart attack, but it won't make a big difference in preventing other serious heart problems or getting cancer if you're a healthy older adult.

74
Pro
0
Against

Evidence from Studies

Supporting (3)

74

Community contributions welcome

74

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

Randomized Controlled Trial
Human
2019 Jan 3

Taking omega-3 fish oil pills daily lowered the chance of having a heart attack in older adults, but didn’t reduce the risk of strokes, other major heart problems, or cancer. So the claim is mostly right.

74

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

Randomized Controlled Trial
Human
2019 Jan 3

Taking omega-3 fish oil pills every day lowered the chance of having a heart attack in older adults, but didn’t reduce the risk of strokes, other heart problems, or cancer. So the claim is right: it helps with heart attacks but not much else.

50

Omega-3 fatty acids have little or no cardiovascular protection: An interventional study

Randomized Controlled Trial
Human

This study found that taking omega-3 fish oil pills daily didn’t really help prevent heart problems in adults, which matches the claim that these pills don’t significantly lower the risk of major heart events. It didn’t show any big benefit for the heart.

Contradicting (0)

0

Community contributions welcome

No contradicting evidence found

Gold Standard Evidence Needed

According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.

Similar Assertions

Taking a daily omega-3 supplement for about five years may lower the chance of having a heart attack by nearly a third for people aged 50 and up who are otherwise healthy.

74
0
85%

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.

74
0
84%

Taking a daily omega-3 supplement for about five years might lower the chance of having a heart attack in people over 50 who are otherwise healthy, but scientists aren't totally sure yet and need to check this again.

74
0
82%

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

74
0
82%

For people over 50 who don't eat much fish, taking a daily omega-3 supplement might help lower their risk of serious heart problems, but we're not sure yet and need more research.

0
74
80%

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