Potassium gluconate
Potassium gluconate suppliers and sourcing guide
Potassium gluconate is the potassium salt of gluconic acid. Gluconic acid is made by fermenting glucose, and it is neutralized with potassium hydroxide or carbonate, then crystallized or spray-dried. The anhydrous salt is a white, odorless powder with about 17% potassium and a milder taste than potassium chloride, which is why brands buy it for supplements, drink mixes and liquid nutrition despite its lower potassium content.
- Category
- Vitamins and minerals
- Also known as
- Potassium D-gluconate · Monopotassium D-gluconate · E577
- Facts checked
- November 2026
Forms and grades of potassium gluconate
Suppliers sell different products under the same name. Specify the one you need.
Anhydrous powder
The common grade for tablets, capsules and drink mixes.
Monohydrate
Hydrated grade with slightly less potassium per gram.
Granular grades
Agglomerated material for direct compression and dust control.
Liquid solutions
Aqueous potassium gluconate at a stated concentration for beverages.
What to check on the COA
Compare each result with your own specification when the lot arrives.
- Assay
- Potassium gluconate on the dried basis by nonaqueous titration or HPLC, against a USP or Food Chemicals Codex specification.
- Loss on drying
- Water content, which distinguishes anhydrous from monohydrate.
- Reducing substances
- A limit for residual glucose and other reducing sugars from fermentation.
- Lead and other metals
- Lead, arsenic, cadmium and mercury by ICP-MS.
- Microbiology
- Total plate count, yeast and mold, coliforms.
Storage, lots and expiry
Storage and shelf life
Store potassium gluconate in sealed containers in a cool, dry place; it is hygroscopic and cakes when exposed to humid air. Reseal opened bags promptly. Shelf life is set by the supplier's specification, and aged stock is retested for moisture and assay.
Lots and expiry dates
Record the hydrate form, assay and loss on drying for each lot, since potassium per gram depends on them. Check flow on arrival; caked lots point to moisture exposure.
Regulatory status
Facts from regulators and standards bodies, each linked to its source.
FDA's Substances Added to Food inventory lists potassium gluconate with the technical effects nutrient supplement and sequestrant.
Source: hfpappexternal.fda.gov (opens in a new tab)Health Canada's Multi-Vitamin/Mineral Supplements monograph for natural health products lists potassium gluconate among the source ingredients for potassium (Table 2).
Source: webprod.hc-sc.gc.ca (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.
Potassium gluconate suppliers
Manufacturers and distributors whose own websites say they sell it.
We are checking potassium gluconate 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 potassium gluconate? Request a listingFrequently asked questions
What forms of potassium gluconate can brands buy?
Common forms include anhydrous powder, monohydrate, granular grades and liquid solutions. Ask each supplier for the specification sheet of the exact grade they quote.
What should the COA for potassium gluconate include?
Expect assay, loss on drying, reducing substances, lead and other metals and microbiology, each with its method, specification and result for that lot.
How should potassium gluconate be stored?
Store potassium gluconate in sealed containers in a cool, dry place; it is hygroscopic and cakes when exposed to humid air. Reseal opened bags promptly. Shelf life is set by the supplier's specification, and aged stock is retested for moisture and assay.
What is the regulatory status of potassium gluconate?
FDA's Substances Added to Food inventory lists potassium gluconate with the technical effects nutrient supplement and sequestrant. Health Canada's Multi-Vitamin/Mineral Supplements monograph for natural health products lists potassium gluconate among the source ingredients for potassium (Table 2).
More vitamins and minerals
- Magnesium GlycinateMagnesium bisglycinate · Magnesium bisglycinate chelate
- Vitamin CL-ascorbic acid · Ascorbic acid
- Vitamin D3Cholecalciferol · Colecalciferol
- ZincZinc citrate · Zinc gluconate
- Vitamin A palmitateRetinyl palmitate · Retinol palmitate
- Vitamin A acetateRetinyl acetate · Retinol acetate
- Beta-caroteneβ-Carotene · all-trans-beta-carotene
- Vitamin D2Ergocalciferol · Calciferol
- Vitamin E (d-alpha tocopherol)d-alpha-tocopherol · RRR-alpha-tocopherol
- Mixed tocopherolsTocopherols concentrate, mixed · Mixed tocopherol concentrate
- Vitamin K1Phylloquinone · Phytonadione
- Vitamin K2 (MK-7)Menaquinone-7 · MK-7
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