03-12-2026, 08:29 PM
I was kind of surprised at the title of the article I'm pointing to...
The Gut Bacterium That Builds Your Muscles
Interesting or not?
Because correlation can only imply causation... I'm wondering how this idea is to be applied.
The Gut Bacterium That Builds Your Muscles
Quote:...
Researchers in the Netherlands and Spain have identified a specific species of gut bacterium, Roseburia inulinivorans, that correlates with muscle strength in both young and older adults, and that demonstrably increases grip strength in mice when administered orally. Not exercise. Not protein supplements. A microbe. The same kind of thing your digestive tract uses to ferment dietary fibre.
The gut microbiome has been implicated in a remarkable range of health conditions over the past decade or so, from metabolic disease to neurodegeneration to cardiovascular risk to mood disorders, and there has been growing interest in whether it might influence muscle mass and function too. What’s been missing is specificity. The general claim that gut bacteria matter for muscle health is not quite the same as naming the species responsible, describing what it does mechanically, and showing a causal effect in a controlled experiment. This study attempts all three.
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Interesting or not?
Because correlation can only imply causation... I'm wondering how this idea is to be applied.




