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Its a two-way street in IBD, with the gut microbiome changes potentially causing high homocysteine, but then high homocysteine will increase the inflammation in the gut.[ref] Gastrointestinal production of homocysteine: Gut microbes that produce folate: The amount of folate produced by the gut microbiome is on a similar scale to what we get from food, so it is a significant source of folate for most people

Critical challenges included insufficient sample size reducing statistical power, reliance on self-reported exposure data introducing recall bias, and inadequate control for confounding factors such as smoking and alcohol consumption

"Glutamine as an immunonutrient." Yonsei Med J

While the biological plausibility exists, the evidence does not meet the standard we would require to confirm anti-aging effects

This modeling strategy enables us to robustly assess the statistical significance of deaths in social proximity while accounting for unobserved spatial and temporal confounders