Best Supplements for Reduced Postprandial Glucose
Ranked by research evidence. Compare 38 supplements across 48 papers from the biomedical literature, with effect direction, evidence strength, and dose range for each.
Top picks by evidence
- Moderate evidence5 studies
Across 5 studies, 4 reported beneficial effects of white mulberry on reducing postprandial glucose, with effect sizes ranging from small to large. The strongest evidence comes from RCTs using mulberry fruit extract (MFE) or leaf extract (MLE) at doses around 250 mg to 2.9 g per meal, showing modest to large reductions in glycemic response. One small neutral study in adults with type 2 diabetes used a low dose (0.37 g) and did not reach significance, suggesting dose may be critical.
Dose: 250 mg to 1.5 g per ~50 g available carbohydrate (as mulberry fruit extract or leaf extract), taken with or shortly before a meal - Moderate evidence3 studies
Across 3 studies, 2 reported beneficial effects (one large, one moderate) on reducing postprandial glucose, while 1 found a neutral small effect. The predominant effect size is mixed (moderate to large). The most-studied dose range is 4–55 g premeal, with most studies using 15–30 g. Beneficial effects were observed in general adults and in pregnant women with gestational diabetes, but study durations were short (median 7 days).
Dose: 4–55 g premeal (most studies used 15–30 g) - Low evidence4 studies
Across 4 studies, 2 reported beneficial effects of black cumin (Nigella sativa) on postprandial glucose, with effect sizes ranging from small to moderate. The only high-quality study (a meta-analysis of 82 RCTs) found a moderate beneficial effect, while the remaining small-to-moderate studies showed neutral or mixed results. Median study duration was 60 days, and doses ranged from 200 to 4600 mg/day, though no clear dose-response pattern emerges.
- ModerateWhite MulberryAcross 5 studies, 4 reported beneficial effects of white mulberry on reducing postprandial glucose, with effect sizes ranging from small to large. The strongest evidence comes from RCTs using mulberry fruit extract (MFE) or leaf extract (MLE) at doses around 250 mg to 2.9 g per meal, showing modest to large reductions in glycemic response. One small neutral study in adults with type 2 diabetes used a low dose (0.37 g) and did not reach significance, suggesting dose may be critical. · Dose: 250 mg to 1.5 g per ~50 g available carbohydrate (as mulberry fruit extract or leaf extract), taken with or shortly before a meal4 beneficial1 neutral5 studies
- LowBlack CuminAcross 4 studies, 2 reported beneficial effects of black cumin (Nigella sativa) on postprandial glucose, with effect sizes ranging from small to moderate. The only high-quality study (a meta-analysis of 82 RCTs) found a moderate beneficial effect, while the remaining small-to-moderate studies showed neutral or mixed results. Median study duration was 60 days, and doses ranged from 200 to 4600 mg/day, though no clear dose-response pattern emerges.2 beneficial2 neutral4 studies
- ModerateWhey ProteinAcross 3 studies, 2 reported beneficial effects (one large, one moderate) on reducing postprandial glucose, while 1 found a neutral small effect. The predominant effect size is mixed (moderate to large). The most-studied dose range is 4–55 g premeal, with most studies using 15–30 g. Beneficial effects were observed in general adults and in pregnant women with gestational diabetes, but study durations were short (median 7 days). · Dose: 4–55 g premeal (most studies used 15–30 g)2 beneficial1 neutral3 studies