Diarrhea
Supplements studied for diarrhea.
Overview
Zinc has the strongest evidence (DEX Score 76, five studies): 5–20 mg daily shortens diarrhea duration in malnourished or zinc-deficient children by roughly 11–26 hours and lowers persistence rates. Saccharomyces boulardii (DEX Score 68; medium effect size, very high evidence, medium trust; 15 studies) may shorten acute diarrhea by about one day in children and works well combined with zinc.
Probiotics (DEX Score 64; medium effect size, medium evidence, high trust) are possibly effective per limited trials. Vitamin A (DEX Score 60) reduces diarrhea incidence and mortality in young children when supplemented directly, though maternal supplementation did not clearly help breastfed infants. Nattokinase entries reflect soy formula/fiber research rather than nattokinase itself. See the heatmap and evidence reviews below.
Effect graph
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Relevant supplements sorted by DEX Score.
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SupplementDEX Database
8 supplements for , and rated at least stars. All purchase bands. No minimum star filter.
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