Acacia fiber (prebiotic)
What it is
A soluble dietary fibre from Acacia senegal tree gum that is the most gut-tolerant prebiotic for people with IBS, bloating, or sensitive guts. Unlike inulin and FOS which commonly cause gas and bloating, acacia fibre ferments slowly and uniformly in the distal colon, producing steady short-chain fatty acid output without sudden gas accumulation. Multiple RCTs confirm it significantly increases Bifidobacterium and Lactobacillus populations, lowers LDL cholesterol by 4–5%, and improves stool consistency in both IBS-C and IBS-D without the bloating that limits most other prebiotics. Well tolerated even in patients with SIBO when introduced gradually.
Dose
5–10 g/day dissolved in water or food; begin at 5 g/day and increase by 1–2 g/week to avoid adjustment period
Time of day & tips
Dissolve in water, juice, or add to food — virtually tasteless and textureless. Start low and increase slowly. Requires consistent daily use rather than episodic supplementation. One of the safest prebiotics for those with FODMAP sensitivity or IBS when gradually introduced.
Cycling
Safe for continuous daily use indefinitely. No tolerance issues or declining prebiotic effect with continued long-term use. One of the best prebiotics for lifelong gut microbiome support.
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