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Wkb3.0
White Kidney Bean Extract Research
Too few graded studies
6 peer-reviewed studies
What the evidence says
Too few graded studies
White Kidney Bean Extract doesn't have enough studies with structured effect-size data yet to pool a verdict. Browse the studies below for individual findings.
Most evidence is from high-quality meta-analyses and randomised trials published 2007–2026.
Based on 6 studies · 2 meta-analyses · 4 RCTs
Confidence
High confidence
By outcome
Weight managementInconsistent; meta-analysis found no significant weight loss vs placebo, though some small trials report modest fat/weight reductions · 4-12 weeks (if any)
Too few graded studies5 studies
Safety profile
Too few graded studies2 studies
Glucose & metabolicPlausible blunting of post-meal glucose spikes by slowing starch digestion, but human glycemic outcome data are limited · Per-meal (acute)
Too few graded studies1 study
Active research area
2 studies in the last 5 years · Latest meta-analysis: 2026
200720162026
1Meta-Analysis2026
In plain English: These findings indicate that WKBE may serve as a generally well-tolerated, nonpharmacological adjunct for weight management.
Shi N, Wang R, Cao X, Huang Z, Lin F, Xu R, Zhang Q. · Nutrition research (New York, N.Y.) (2026)
We hypothesized that WKBE could significantly improve key anthropometric outcomes in adults with overweight and obese compared with placebo, with acceptable safety.
No significant differences were observed in fasting blood glucose, triglycerides, or random insulin.
No serious adverse events related to WKBE were reported.
In plain English: The poor quality of the included RCT prevents us from drawing any firm conclusions about the effects of P. vulgaris supplementation on body weight.
Onakpoya I, Aldaas S, Terry R, Ernst E. · Br J Nutr (2011)
Of 11 eligible trials, 6 were included; all had serious methodological flaws
Pooled weight loss was NOT statistically significant versus placebo (MD -1.77 kg, 95% CI -3.33 to 0.33)
A significant body-fat reduction was found (MD -1.86 kg) but with heterogeneity between trials
In plain English: At the end of the WL study, the IQP-PV-101 group lost a mean of 2.91 ± 2.63 kg in body weight compared with 0.92 ± 2.00 kg in the placebo group (P < 0.001).