mechanistic
Analysis v1
Strong Support
If you eat meat and take L-carnitine, your gut bacteria might turn it into a substance that could clog your arteries. But if you're vegan or vegetarian, your gut bugs don’t do this much, so you’re less likely to make that substance.
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Evidence from Studies
Supporting (1)
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Community contributions welcome
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Intestinal microbiota metabolism of L-carnitine, a nutrient in red meat, promotes atherosclerosis
Cohort Study
Human
2013 MayThe study shows that meat-eaters' gut bacteria turn L-carnitine from red meat into a harmful substance called TMAO, but vegans and vegetarians don't make much of it because their gut bacteria are different.
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.