Compound or practice · Supplement
White Kidney Bean Extract
A starch-blocker that modestly blunts carb absorption — small real effect, big marketing.
- Overall grade
- Grade C
- Last revised
- 1
- graded outcome
- 0
- references listed
A structured monograph in Prometheus's bundled library. Its grades are the monograph's own reading of the evidence, not a peer-reviewed review.
1 at grade C — 1 graded row
What is known
Each outcome with its grade (how strong the evidence is, A to D), the size of the effect where the entry records one, and how often studies agree.
- Weight / post-meal glucoseEvidence grade C
With starchy meals
Smallmixed
What is uncertain
Read off the same rows as above. Nothing here is added that the entry does not itself record.
- Thin evidence: Weight / post-meal glucose (grade C).
The evidence in words
What it is
White kidney bean (Phaseolus vulgaris) extract inhibits the starch-digesting enzyme alpha-amylase.
How it works
By blocking alpha-amylase, it reduces digestion and absorption of some dietary starch.
What the evidence shows
Meta-analyses show modest reductions in body weight and post-meal glucose when taken with starchy meals — real but small, and undermined if the diet isn't starch-heavy. GI effects (gas) from undigested starch are common.
Safety & interactions
Generally safe; gas/bloating from unabsorbed starch.
Bottom line
A genuine but modest starch-blocker for carb-heavy meals. Minor; expect some gas and don't overpromise.
Related reading
Entries that share this one's tags or conditions.
- Mulberry LeafA natural alpha-glucosidase inhibitor that genuinely flattens the post-meal glucose spike.Evidence grade C
- White Kidney Bean Extract for Weight / post-meal glucoseEvidence grade C — With starchy mealsEvidence grade C
- White Kidney Bean Extract: side effects, safety & interactionsGenerally safe; gas/bloating from unabsorbed starch.Evidence grade C
- Alpha-Lipoic AcidAn antioxidant with genuine evidence for diabetic neuropathy symptoms and modest insulin-sensitivity effects.Evidence grade B
Sources
This entry lists no references of its own.
Last revised . A grade is this entry's reading of the evidence, not medical advice.