White kidney bean extract
White kidney bean extract suppliers and sourcing guide
White kidney bean extract is a water extract of the dried seed of Phaseolus vulgaris (white kidney or cannellini bean). The beans are ground and extracted with water, and the extract is concentrated and dried to a powder that is sold with a declared alpha-amylase inhibitor activity, measured by an enzyme assay. Processing must also reduce lectin (phytohemagglutinin) activity, which raw beans contain.
- Category
- Botanicals and mushrooms
- Also known as
- Phaseolus vulgaris extract · white bean extract · alpha-amylase inhibitor extract · phaseolamin
- Facts checked
- November 2026
Forms and grades of white kidney bean extract
Suppliers sell different products under the same name. Specify the one you need.
Standardized aqueous extract
Water extract with a declared alpha-amylase inhibiting activity per gram (for example 3,000 AAIU/g).
Bean powder
Milled, heat-treated white bean, not standardized, for food uses.
Branded extracts
Proprietary extracts sold on the maker's own activity assay and specification.
Non-GMO and organic
Extracts from identity-preserved non-GMO or certified organic beans.
What to check on the COA
Compare each result with your own specification when the lot arrives.
- Alpha-amylase inhibitor activity
- Enzyme inhibition assay reported in units per gram; methods and unit definitions differ between suppliers, so the method belongs on the spec.
- Lectin / hemagglutinin activity
- Hemagglutination assay to confirm lectin activity has been reduced by processing.
- Protein
- Protein content by Kjeldahl or Dumas.
- Heavy metals
- Lead, arsenic, cadmium and mercury, usually by ICP-MS, checked against the buyer's limits and Prop 65 exposure targets where relevant.
- Microbiology
- Total plate count, yeast and mold, E. coli and Salmonella. Raw herb powders carry more microbial load than extracts and may be steam treated, which should be stated on the COA.
- Allergen and GMO status
- Statements on allergens handled on the line and, where claimed, non-GMO testing or certification.
Storage, lots and expiry
Storage and shelf life
Keep the extract sealed in lined drums in a cool, dry place; it is hygroscopic, and heat and moisture reduce enzyme-inhibitor activity. Reseal opened containers promptly. Shelf life follows the supplier's spec, with activity rechecked at retest.
Lots and expiry dates
Inhibitor activity varies with bean lot and processing, and different assays give different numbers, so compare lots only on the same method. Record the supplier lot, activity result, method and retest date.
Regulatory status
Facts from regulators and standards bodies, each linked to its source.
Health Canada's White Kidney Bean Extract natural health product monograph lists Phaseolus vulgaris with the dried seed as the source part.
Source: webprod.hc-sc.gc.ca (opens in a new tab)The same monograph covers standardized aqueous extracts at 3,000 AAIU (alpha-amylase inhibiting units) per gram of extract.
Source: webprod.hc-sc.gc.ca (opens in a new tab)GRN 480, for a dried aqueous extract of white kidney bean notified by Pharmachem Laboratories, Inc., closed on May 30, 2014 with FDA having no questions.
Source: hfpappexternal.fda.gov (opens in a new tab)
This is general information, not regulatory advice. Status differs by country and by how the ingredient is used, so check the rules for your product and market.
White kidney bean extract suppliers
Manufacturers and distributors whose own websites say they sell it.
We are checking white kidney bean extract suppliers now
Every listing is checked against the supplier’s own website before it goes live, so this list fills in over the coming weeks. The specs and COA checklist above are ready today.
Sell white kidney bean extract? Request a listingFrequently asked questions
What forms of white kidney bean extract can brands buy?
Common forms include standardized aqueous extract, bean powder, branded extracts and non-GMO and organic. Ask each supplier for the specification sheet of the exact grade they quote.
What should the COA for white kidney bean extract include?
Expect alpha-amylase inhibitor activity, lectin / hemagglutinin activity, protein, heavy metals, microbiology and allergen and GMO status, each with its method, specification and result for that lot.
How should white kidney bean extract be stored?
Keep the extract sealed in lined drums in a cool, dry place; it is hygroscopic, and heat and moisture reduce enzyme-inhibitor activity. Reseal opened containers promptly. Shelf life follows the supplier's spec, with activity rechecked at retest.
What is the regulatory status of white kidney bean extract?
Health Canada's White Kidney Bean Extract natural health product monograph lists Phaseolus vulgaris with the dried seed as the source part. The same monograph covers standardized aqueous extracts at 3,000 AAIU (alpha-amylase inhibiting units) per gram of extract. GRN 480, for a dried aqueous extract of white kidney bean notified by Pharmachem Laboratories, Inc., closed on May 30, 2014 with FDA having no questions.
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