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Key Takeaways Vitamin B12 is essential for red blood cell production, DNA synthesis, and brain function, with dietary sources primarily from animal products, making supplementation vital for vegetarians and vegans
A practice guideline of the American Academy of Neurology recommends measuring MMA or fasting homocysteine levels in patients with unexplained distal symmetric polyneuropathy and low-"normal" vitamin B12 levels (71)
Short-chain fatty acid metabolites propionate and butyrate are unique epigenetic regulatory elements linking diet, metabolism and gene expression
However, no published studies have examined whether polyphenol-rich extracts reduce TMAO production following an OCC, limiting available data for effect size estimation
Testosterone is a main male sex hormone but some men can have lower testerone levels than others
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