All articles tagged with #roseburia inulinivorans
A study links gut bacteria to muscle strength, with higher Roseburia inulinivorans levels associated with stronger grip and larger Type II muscle fibers in mice, suggesting the microbiome may influence energy use in muscles. Older adults had lower levels than younger ones, hinting at a potential route to preserve muscle function in ageing via probiotics or high-fiber diets, though human data are small and causality isn’t yet proven.
A gut bacterium, Roseburia inulinivorans, is linked to stronger muscles and better fitness, with levels declining as people age. In humans, older adults with detectable R. inulinivorans had about 29% higher grip strength; in mice, supplementation boosted forelimb grip strength by ~30% and increased the proportion of fast-twitch (type II) muscle fibers, suggesting a gut–muscle axis and probiotic potential for sarcopenia. The study also notes species-specific effects and limitations, including that colonization did not occur in the mouse model and long-term human trials are needed to confirm causality and benefit.
Researchers find that a Mediterranean-diet–associated gut bacterium, Roseburia inulinivorans, correlates with higher grip strength in humans and, when fed to mice, increases grip strength by about 30% over 4–8 weeks and shifts muscle fibers toward a stronger, fast-twitch type. The study suggests potential probiotic or drug approaches to combat frailty, but human trials are needed and delivering such an anaerobic microbe in pill form remains a hurdle; the work was published in Gut and underscores the gut-muscle connection.
Researchers linked higher gut levels of the bacterium Roseburia inulinivorans with stronger muscle performance in adults; in mice, introducing the microbe improved grip strength, increased muscle fiber size and a shift toward more powerful type II fibers, and altered energy pathways and amino-acid levels. Older adults tended to have fewer of these bacteria, suggesting a possible role in age-related muscle decline. While the mouse data imply a causal effect, human findings remain correlational, and larger studies are needed. If confirmed, probiotics or a high-fibre diet to support such microbes could help maintain muscle function alongside regular exercise.