Skip to content
DE
Fatty acid

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.

Gut HealthLongevityImmune Support

What it is studied for

The strongest rated effects first. Bars show the size of the effect, the letter grades the evidence, and each rating lists the studies behind it.

DiarrheaStrongA3 studies
Gut healthModerateBNo linked study
Oxidative stressLongevityModerateBNo linked study
Immune SupportModerateBNo linked study
InflammationModerateBNo linked study
Digestive sensitivityGut HealthModerateBNo linked study
All 10 rated effectsGrouped by health goal, with the publications behind each rating

What are SCFAs doing in the gut?

Gut microbes produce short-chain fatty acids, or SCFAs, when they ferment certain fibers. These compounds can supply energy to the body. Butyrate is one example; researchers also study propionate and acetate. 1 2

Key studies

The most recent publications linked to Short-Chain Fatty Acid's ratings.

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.2022The role of Short-chain fatty acids in intestinal barrier function, inflammation, oxidative stress, and colonic carcinogenesis.2021Short chain fatty acids and its producing organisms: An overlooked therapy for IBD?2021

Why people take it

Detox25%
Gut Health25%
Immune Support25%
Essential Health25%

SuppCo community snapshot, 2026-09-28. Reasons for use are not evidence that it works.

Questions people ask

Does butyrate research prove a cure for a “leaky gut”?

No. LIBRE tested a whole dietary pattern and indirect barrier markers, not a capsule cure. 3

Is resistant starch reliably tolerated?

Most participants in the reviewed trials tolerated it, but individual responses and trial preparations varied. 4

Are the pilot doses a recommendation?

No. They describe one short tributyrin-complex study, not an established daily requirement. 2

Sources