White Kidney Bean Extract is a botanical extract derived from Phaseolus vulgaris seeds, standardized to Phaseolamin (α-amylase inhibitor). With CAS registry number N/A, this ingredient belongs to the Carb & Fat Absorption Blockers category of weight management actives. Phaseolamin is a protein-based α-amylase inhibitor that prevents starch digestion in the small intestine, reducing carbohydrate calorie absorption by 30-40%. Undigested starch passes as resistant starch (zero net calories). Directly targets carb calorie absorption — the "carb blocker" concept. As a B2B manufacturer, Shaanxi Baisifu Biological Engineering Co., Ltd. supplies White Kidney Bean Extract in bulk quantities with full Certificate of Analysis (COA), ensuring consistent Phaseolamin (α-amylase inhibitor) content and regulatory compliance for dietary supplement, functional food, and nutraceutical applications.
Standard specifications for White Kidney Bean Extract bulk supply from Baisifu:
Phaseolamin is a protein-based α-amylase inhibitor that prevents starch digestion in the small intestine, reducing carbohydrate calorie absorption by 30-40%. Undigested starch passes as resistant starch (zero net calories). Directly targets carb calorie absorption — the "carb blocker" concept.
Level I. Udani & Hardy (2004) systematic review of 14 RCTs confirmed significant postprandial glucose reduction and 1.5-2.5 kg weight loss over 8 weeks. Celleno et al. (2007) showed 2.93 kg weight loss over 30 days at 500 mg before meals without dietary restrictions.
FDA GRAS. Most common side effect: flatulence (undigested starch → gut fermentation). Mild, temporary. No hepatotoxicity or cardiovascular risk. Heat processing denatures phaseolamin — raw extract essential.
Shaanxi Baisifu Biological Engineering Co., Ltd. manufactures and supplies White Kidney Bean Extract (CAS N/A) in bulk quantities for: • Dietary supplement manufacturers (capsules, softgels, tablets, powders)
• Functional food & beverage producers
• Nutraceutical brands seeking Phaseolamin (α-amylase inhibitor) standardized ingredient
• Cosmetics companies (anti-cellulite, metabolic support topical) Each batch includes full Certificate of Analysis (COA) with:
• Phaseolamin (α-amylase inhibitor) content verification (HPLC/UV)
• Heavy metals, microbial, moisture compliance
• Pesticide residue testing (where applicable)
• Stability data and shelf life confirmation Available forms: powder extract, oil-based softgel fill, microencapsulated powder
Minimum order: 1 kg (sample quantities available)
Lead time: 7–15 business days
Packaging: 25 kg/drum, double-layer PE bag + fiber drum, nitrogen flush available
Q1: Does White Kidney Bean Extract really block carbs?
Yes. Phaseolamin inhibits α-amylase 30-40% in vivo, reducing starch digestion. Only blocks complex starches, not simple sugars. Most effective before carb-heavy meals.
Q2: What dosage is recommended?
500-1,500 mg before carb-containing meals. Standard: 500 mg/capsule, 15-30 min before meal. Higher doses for heavy-carb meals.
Q3: Does it work on a low-carb diet?
Effect proportional to starch consumed. Minimal benefit on <50 g starch/day. Designed for moderate-to-high carb diets.
For complementary weight management formulations, consider combining White Kidney Bean Extract with: Garcinia Cambogia Extract, Green Coffee Bean Extract, Glucomannan, Mulberry Leaf Extract. Multi-ingredient stacks targeting different mechanisms (lipase inhibition, AMPK activation, thermogenesis, appetite suppression) produce synergistic effects superior to single-ingredient products.
About Baisifu: Shaanxi Baisifu Biological Engineering Co., Ltd. (No.69, Jinye Road, Xi'an, 710065, Shaanxi, China | Tel: 0086-29-81110978) is a GMP/ISO-certified manufacturer of botanical extracts, food flavors, amino acids, peptides, and biopesticides with 1,000+ products exported to US/EU B2B markets.
Disclaimer: This content is for informational and B2B product development purposes only. White Kidney Bean Extract (CAS N/A) is a raw ingredient for dietary supplement and functional food formulation, not a finished consumer product. Claims cited are from published research and regulatory approvals — they do not constitute medical advice or guarantee specific outcomes. Consult regulatory experts for target market compliance.
| Parameter | Specification |
|---|---|
| Phaseolamin | 1-5% |
| Protein Content | ≥30% |
| Appearance | Off-white to light brown powder |
| Solubility | Water-soluble |
| Particle Size | 80 mesh |
| Moisture | ≤8% |
| Heavy Metals | ≤10 ppm |
| Amylase Inhibition | ≥60% in vitro |
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