The Claim
In mice, chronic dietary supplementation with L-carnitine increases atherosclerosis by approximately twofold, and this effect is completely prevented by antibiotic-mediated suppression of gut microbiota, indicating that the pro-atherosclerotic effect of L-carnitine is dependent on gut microbiota.
What the research says
Supports is higher
Support is ahead, but a single strong opposing study can change this.
These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.
Giving mice a supplement called L-carnitine every day makes artery disease about twice as bad, but if you wipe out their gut bacteria with antibiotics, that effect goes away — meaning the gut bugs are behind the harm.
See the scientific wording
Chronic dietary L-carnitine supplementation in mice increases atherosclerosis by approximately twofold, but this effect is completely prevented when gut microbiota is suppressed with antibiotics, indicating a microbiota-dependent mechanism.
What the research says
1 studyStudy: Intestinal microbiota metabolism of L-carnitine, a nutrient in red meat, promotes atherosclerosis
The study shows that when mice eat extra L-carnitine, they get more artery disease, but only if their gut bacteria are active. If the bacteria are wiped out with antibiotics, the harm goes away.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies
Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.