Prebiotic

A **prebiotic** is a substrate—typically a non-digestible compound, most commonly a fiber or oligosaccharide—that is selectively utilized by host microorganisms, mainly gut bacteria, resulting in a health benefit[1][3][5][7]. The scope of prebiotics has expanded to include not only select dietary fibers (like inulin, fructooligosaccharides, galactooligosaccharides, resistant starches) but also other compounds such as polyphenols[1][3][6]. Unlike traditional therapeutic drug targets, prebiotics exert their effects through the modulation of the microbiome rather than by direct molecular interaction with host proteins or receptors. Their principal mechanism is the stimulation of growth or activity of beneficial bacterial species (e.g., Bifidobacterium, Lactobacillus), thereby improving gut health and potentially conferring systemic benefits, such as reduced inflammation and enhanced metabolic and immune function[1][3][5][6][7]. Prebiotics are not considered receptors, enzymes, or traditional drug targets, thus are not suitable entries for canonical target databases. If you require information on a specific prebiotic compound (e.g., inulin, fructooligosaccharide, galactooligosaccharide), please clarify for an accurate target-molecule profile.

Other names

Prebiotic (nutrition)prebiotic compoundprebiotic fiberdietary prebiotic

Selective fermentation by gut bacteria to produce SCFAs and other metabolites that modulate host physiology. Enhancement of beneficial bacterial populations and suppression of pathogenic bacteria. Modulation of gut immune responses and barrier integrity.