Quality of Life Clinical Trial
Official title:
Effect of Colon Delivered Vitamin C on Gut Microbiota and Related Health Biomarkers in Healthy Older Adults
Recent studies have shown that many vitamins, if consumed in high daily dosages or delivered to the colon, can modulate the gut microbiota and their metabolites. In parallel, gut microbiota imbalances are linked to diseases, e.g., obesity, type 2 diabetes, cardiovascular disease, autoimmune diseases, and intestinal inflammatory diseases. Therefore, vitamin administration could offer health benefits beyond those traditionally considered for these nutrients. Earlier, our group investigated the effect of colon-delivered vitamins A, B2, C, D, and E on the gut microbiota using a human clinical trial and showed that vitamin C, B2, and D modulates the human gut microbiome in terms of metabolic activity and bacterial composition. The most distinct effect was that of vitamin C, which significantly increased microbial alpha diversity and fecal short-chain fatty acids compared to the placebo. However, the dose-dependent and combined effect of colon-delivered vitamins on the microbial community and its subsequent impact on host health is unknown. This study will investigate the effect of colon-delivered vitamin C (three dosages) on the gut microbiome.
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