Supplements studied for supporting gut microbiome and intestinal health.
66 supplements have studies linked to this goal. Fiber (Dietary) scores highest (8/10), followed by Probiotics (8/10) and Prebiotics (7/10). 7 of them reach moderate or strong support — the rest are thinly studied or showed little effect.
Supplements rated for Gut Health
How to read these scores
The 0–10 score reflects how well the evidence supports a supplement for this specific goal, independent of how much it has been studied overall. It is an editorial rating checked against meta-analyses — how we set it.