Short-chain fatty acid production via fermentation by gut microbiota (SCFA production (by gut microbiota))

Short-chain fatty acid production via fermentation by gut microbiota refers to the **microbial metabolic process** in which certain bacteria in the large intestine ferment indigestible polysaccharides—primarily dietary fiber and resistant starch—to generate short-chain fatty acids (SCFAs), mainly acetate, propionate, and butyrate. This is not a single molecular target such as a receptor or enzyme but rather a collective metabolic activity performed by diverse microbial species. SCFAs are produced at high levels daily in the colon and serve several critical roles: • They are the main energy source for colonocytes—the cells lining the colon—and help maintain intestinal barrier integrity. • They modulate immune responses both locally in the gut and systemically. • They influence host metabolism, including glucose homeostasis and lipid metabolism. • They may affect brain function through direct or indirect mechanisms involving neuroendocrine signaling pathways[1][2]. Alterations in SCFA production have been linked to various diseases including inflammatory conditions, metabolic disorders like type 2 diabetes, cardiovascular diseases, some cancers, and potentially neurological disorders. However, "short-chain fatty acid production via fermentation by gut microbiota" is **not itself a druggable molecular target** such as an enzyme or receptor; rather it describes an important physiological process mediated by many different bacterial enzymes and pathways[1][5]. Therefore: • This entry does **not correspond to a canonical therapeutic target** like an individual protein or receptor. • It should be flagged as incorrect if used as a molecular drug target. If you need information on specific receptors that mediate effects of SCFAs—such as Free Fatty Acid Receptor 2 (FFAR2) or Free Fatty Acid Receptor 3 (FFAR3)—those would be considered valid targets with their own structured entries[1].

Other names

SCFA productionShort-chain fatty acid biosynthesis (by gut bacteria)Microbial fermentation of fiber to SCFAs