Short-Chain Fatty Acid
Short-chain fatty acids, or SCFAs, are compounds gut microbes produce when they ferment certain fibers. Butyrate, propionate and acetate are the main examples.
Can they help the gut barrier?
In the German LIBRE trial, 260 women with impaired gut-barrier markers followed a Mediterranean or control diet for three months. Higher propionate and butyrate levels accompanied improvements in markers measured in blood and stool. The analysis supports a possible mechanism linking diet and the gut barrier; it did not test SCFA capsules or establish relief of digestive symptoms. 1
Promising diet-related marker changes do not establish a capsule treatment. 1
What has a capsule study found?
A 21-day tributyrin-complex pilot found no statistically significant inflammatory or glucose-marker improvements. Its placebo lead-in, without a concurrent control group, limits conclusions about benefit. 2
Effects by health goal
Open an effect to see the studies behind its rating. Bars show the size of the effect; the letter grades the evidence.
Gut Health5 effects
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Longevity1 effect
No study is linked to this rating.
Immune Support1 effect
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Other effects3 effects
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No study is linked to this rating.
All studies
3 publications are linked to Short-Chain Fatty Acid, newest first.
Sources
- Short-chain fatty acids are key mediators of the favorable effects of the Mediterranean diet on intestinal barrier integrity: data from the randomized controlled LIBRE trial American Journal of Clinical Nutrition, 2022 · Study record
- Investigation of the tolerability and potential health benefits of a novel butyrate generating supplement in a pilot human study Nutrition and Healthy Aging, 2024