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Types of White Kidney Bean Extract: Forms & Bioavailability

Evidence:Moderate
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This content is for informational purposes only and does not constitute medical advice. Statements about dietary supplements have not been evaluated by the FDA and are not intended to diagnose, treat, cure, or prevent any disease. Individual results may vary — consult your healthcare provider before starting any supplement. Full disclaimer

Forms Comparison

FormBioavailabilityBest For
Phase 2 (patented extract)N/A (acts in GI tract)Most clinically studied branded form — standardized alpha-amylase inhibition
Generic White Kidney Bean ExtractVariableBudget alternative — quality and potency may vary

Phase 2 (patented extract)

Bioavailability: N/A (acts in GI tract). Best for: Most clinically studied branded form — standardized alpha-amylase inhibition.

Generic White Kidney Bean Extract

Bioavailability: Variable. Best for: Budget alternative — quality and potency may vary.

Full White Kidney Bean Extract Guide

References

  1. 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
  2. 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