Prebiotics
TL;DR
Non-digestible fibers that feed beneficial gut bacteria. Inulin and FOS are the most common. Support gut microbiome diversity and short-chain fatty acid production.
Safety: Well-tolerated at moderate doses. Gas and bloating common, especially initially. Start low and increase gradually.
Cost: approximately $8-15/month.
Best for: Metabolic syndrome
What the research says
Meta-analyses show modest improvements in blood glucose, lipids, and satiety. Feed beneficial bacteria that produce butyrate and other beneficial metabolites.
Support gut-liver axis health. Some evidence for reduced endotoxemia in NAFLD. Adjunctive role.
May reduce uremic toxin production by shifting gut microbiome. Very limited clinical data.
Prebiotics on Amazon
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Safety & practical info
Gas and bloating common, especially initially. Start low and increase gradually.
No clinically meaningful drug interactions.
Affordable as powder or capsules.
Sources for this page include published meta-analyses, systematic reviews, and NIH dietary supplement fact sheets. All claims reflect the evidence as of early 2026.
This is not medical advice. Consult your healthcare provider before starting any supplement, especially if you take medications.