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Prebiotics (Inulin, GOS, PHGG) & Butyrate

Evidence: ★★★☆☆ · Status: OTC Supplement

💡 Did you know? The fibre you can't digest feeds gut bacteria that turn it into butyrate — the preferred fuel of your colon's own cells. You outsource your gut's energy to microbes.

In plain English

Prebiotic fibres are food for your good bacteria, which turn them into butyrate — the fuel your gut lining runs on. Feed the garden, don't just add seeds (probiotics).

How it works

Fermentable fibres feed commensal bacteria that produce butyrate — the primary colonocyte fuel and an HDAC inhibitor that strengthens the gut barrier and calms inflammation.

Molecular target & official sources

FFAR2 SCFA receptor (NCBI Gene) · Butyrate (PubChem CID 264)

Bottom line

Feeding existing microbes often beats adding new ones.

Helps with: Build Muscle & Strength · Recover Faster · Stress & Anxiety · Gut Health

Stacks with

Shares a pathway — often paired with: Omega-3 (EPA/DHA), Statins (Atorvastatin/Rosuvastatin), SGLT2 Inhibitors (Empagliflozin / Canagliflozin), Saffron (Crocus sativus).

Availability & where to buy

Available over the counter. Widely available OTC — e.g. iHerb (ships worldwide); in Singapore also Guardian, Watsons, GNC, Shopee / Lazada. Look for a third-party-tested / GMP mark and check the dose per serving.

How it works: the NF-κB / Inflammation pathway →

Used in these protocols

Gut Health

Common questions

Does Prebiotics (Inulin, GOS, PHGG) & Butyrate actually work?

Human-evidence rating: 3 of 5. Feeding existing microbes often beats adding new ones.

Is Prebiotics (Inulin, GOS, PHGG) & Butyrate legal or approved?

Regulatory status: OTC Supplement.