Your gut microbes might be turning fiber into extra calories

A new study from Arizona State University reveals that methane-producing microbes within the human gut microbiome may influence calorie extraction from food, particularly high-fiber foods. These findings suggest individuals with higher levels of gut methane might absorb more calories than those with lower levels. The research identifies methanogens as key players in this process; these microorganisms consume hydrogen gas produced during fiber fermentation and release methane as a byproduct, potentially enhancing energy absorption. This discovery could lead to personalized nutrition approaches tailored to an individual's unique microbial activity. The study was published in The ISME Journal and conducted by researchers at the Biodesign Center for Health Through Microbiomes at ASU.

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