A study published in Nature Microbiology has compared the microbiomes of vegans, vegetarians and omnivores across 21,561 individuals.
Researchers found that omnivores had more bacteria linked to increased risk for colon cancer, and microbes with favourable cardiometabolic markers were particularly plentiful in vegans’ microbiomes. But those healthy microbes in vegans also appeared in greater amounts in the microbiomes of omnivores who ate more plant-based foods. That finding suggests eating a diet emphasising plants may be more helpful for preventing cancer than cutting out meat.
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