We don’t know if natural trans fats from meat and dairy affect cancer risk — no solid human studies have looked at this yet.

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Evidence from Studies

Supporting (1)

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Community contributions welcome

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Effects of ruminant trans fatty acids on cardiovascular disease and cancer: a comprehensive review of epidemiological, clinical, and mechanistic studies.

Narrative Review

Human

2011 Jul

This study looked at whether natural fats from cows and processed fats in junk food affect cancer risk, and found that no solid human studies have been done to prove either one causes or prevents cancer — which is exactly what the claim says.

Contradicting (0)

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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.

Source Study

Effects of ruminant trans fatty acids on cardiovascular disease and cancer: a comprehensive review of epidemiological, clinical, and mechanistic studies.

Score: 1

DOI: 10.3945/an.111.000521

Similar Assertions

Trans fats from dairy and meat don’t seem to harm cholesterol or cause inflammation like the ones made in factories — some might even be a little good for you.

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78%

Small experiments on ruminant trans fats and heart health markers haven't given clear answers — maybe because they used too few people or too much fat that you can't actually eat in real life.

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76%

Some studies suggest that the natural trans fats found in milk and meat might not raise heart disease risk the same way that artificial trans fats in fried and baked foods do.

1

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70%