Best Supplements for Reduced HOMA-IR
Ranked by research evidence. Compare 39 supplements across 51 papers from the biomedical literature, with effect direction, evidence strength, and dose range for each.
Top picks by evidence
- Moderate evidence5 studies
Across 5 meta-analyses, 3 reported small to moderate beneficial effects of vitamin D supplementation on reducing HOMA-IR, while 2 found neutral effects. The beneficial effects were most consistent in clinical populations (patients with diabetes, prediabetes, or MAFLD). The overall evidence suggests a small beneficial effect, though results vary by population and study.
Product matchViva Naturals — Vitamin D3 with Organic Liquid Coconut Oil125 mcg · $15.16 · ★5.0 (208) - Moderate evidence3 studies
Across 3 studies, all reported beneficial effects on HOMA-IR, with effect sizes ranging from small to large. Two meta-analyses found large reductions (WMD -2.56, 95% CI -3.82 to -1.30; MD -1.71), while one RCT in metabolic syndrome patients found a small reduction that was not significantly different from an unfermented milk control. Median study duration was 84 days, but dose data are limited (only one study reported 180 mL/day). Evidence is preliminary and subject to publication bias.
- Moderate evidence3 studies
Across all 3 studies, L-carnitine supplementation consistently shows beneficial effects on reducing HOMA-IR, with effect sizes ranging from small to moderate. The most studied population is adults, including those with overweight/obesity, and the evidence converges on doses of ≥2 g/day. Available evidence is overwhelmingly positive but the evidence base is small (only 3 studies) — conclusions should be considered preliminary.
Dose: ≥2 g/day
- ModerateVitamin DAcross 5 meta-analyses, 3 reported small to moderate beneficial effects of vitamin D supplementation on reducing HOMA-IR, while 2 found neutral effects. The beneficial effects were most consistent in clinical populations (patients with diabetes, prediabetes, or MAFLD). The overall evidence suggests a small beneficial effect, though results vary by population and study.3 beneficial2 neutral5 studies
- ModerateKefirAcross 3 studies, all reported beneficial effects on HOMA-IR, with effect sizes ranging from small to large. Two meta-analyses found large reductions (WMD -2.56, 95% CI -3.82 to -1.30; MD -1.71), while one RCT in metabolic syndrome patients found a small reduction that was not significantly different from an unfermented milk control. Median study duration was 84 days, but dose data are limited (only one study reported 180 mL/day). Evidence is preliminary and subject to publication bias.3 beneficial3 studies
- ModerateL-CarnitineAcross all 3 studies, L-carnitine supplementation consistently shows beneficial effects on reducing HOMA-IR, with effect sizes ranging from small to moderate. The most studied population is adults, including those with overweight/obesity, and the evidence converges on doses of ≥2 g/day. Available evidence is overwhelmingly positive but the evidence base is small (only 3 studies) — conclusions should be considered preliminary. · Dose: ≥2 g/day3 beneficial3 studies