General Dosage
500-1,500 mg before each carb-heavy meal
Maximum dose: 3,000 mg/day has been used safely; typical regimen is 500-1,000 mg before 2-3 meals
White Kidney Bean Extract Dosage Guide
Evidence:Moderate
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Dosage Recommendations
General recommendation: 500-1,500 mg before each carb-heavy meal
Timing: Take 15-30 minutes BEFORE meals containing starch; does not work for sugar or fat calories
Dosage by Condition
Carb/starch blocking
500-1,000 mg before meals containing starchModerate
Weight management
1,000-3,000 mg daily (divided before meals)Moderate
| Condition | Recommended Dose | Evidence |
|---|---|---|
| Carb/starch blocking | 500-1,000 mg before meals containing starch | Moderate |
| Weight management | 1,000-3,000 mg daily (divided before meals) | Moderate |
Upper limit: 3,000 mg/day has been used safely; typical regimen is 500-1,000 mg before 2-3 meals
Timing & Absorption
Take 15-30 minutes BEFORE meals containing starch; does not work for sugar or fat calories
Can be taken with or without food.
References
- Meta-analysisOnakpoya I, Aldaas S, Terry R, Ernst E (2011). The efficacy of Phaseolus vulgaris as a weight-loss supplement: a systematic review and meta-analysis of randomised clinical trials. British Journal of Nutrition. DOI PubMed
- RCTJäger R, Abou Sawan S, Purpura M, Grube B, et al. (2024). Proprietary alpha-amylase inhibitor formulation from white kidney bean (Phaseolus vulgaris L.) promotes weight and fat loss: a 12-week, double-blind, placebo-controlled, randomized trial.. Scientific reports. DOI PubMed