What Is Potassium Gluconate?
Potassium gluconate is the potassium salt of gluconic acid, widely used as a mineral supplement and food additive. It provides a highly bioavailable source of potassium — an essential electrolyte that regulates fluid balance, muscle contractions, and nerve signals. Unlike potassium chloride (which has a strong, bitter metallic taste), potassium gluconate offers a mild, nearly tasteless profile that makes it ideal for consumer-facing products.
Key Applications
Dietary Supplements
Potassium gluconate is the most common form of potassium in OTC supplements. It is gentle on the stomach, easily absorbed, and compatible with tablets, capsules, powders, and liquid formats. It is widely used in electrolyte supplements, sports nutrition products, and daily multivitamins.
Food & Beverage Fortification
In functional beverages, sports drinks, and coconut water, potassium gluconate serves as both a mineral fortifier and a flavor balancer. Its excellent solubility and neutral taste make it the preferred choice over potassium chloride or potassium citrate in taste-sensitive products.
Medical Nutrition
Potassium gluconate is used in oral rehydration solutions (ORS), enteral nutrition formulas, and medical foods designed for patients with potassium deficiency (hypokalemia).
Potassium Gluconate vs Other Potassium Sources
| Parameter | Potassium Gluconate | Potassium Chloride | Potassium Citrate |
|---|---|---|---|
| K Content | ~16.7% | ~52.4% | ~38.3% |
| Taste | Mild, neutral | Strong, bitter, metallic | Slightly salty/sour |
| GI Tolerance | Excellent | May cause irritation | Good |
| Solubility | Freely soluble | Soluble | Soluble |
| Best For | Supplements, beverages, gummies | Tablets (coated), salt substitutes | Kidney health, urinary pH |
Technical Specifications
| Parameter | Specification |
|---|---|
| CAS Number | 299-27-4 |
| Molecular Formula | C₆H₁₁KO₇ |
| Appearance | White to yellowish powder or granules |
| Purity | ≥99.0% |
| Regulatory | FDA GRAS, EU-approved, Codex-listed |
Why Source from WIS Biotech?
WIS Biotech produces food-grade potassium gluconate as part of our complete gluconate mineral series. With ISO, HACCP, Halal, and Kosher certifications, our potassium gluconate is ready for global supplement and food markets. We offer flexible MOQs starting from 25 kg for samples. Contact us for pricing.
Frequently Asked Questions
Why is potassium gluconate preferred in supplements over potassium chloride?
Potassium gluconate has a significantly milder taste and better GI tolerance compared to potassium chloride, which has a strong bitter/metallic flavor and can irritate the stomach lining.
Can potassium gluconate be used in liquid supplements?
Yes. Its high water solubility and neutral taste make it ideal for liquid supplements, effervescent tablets, and functional beverages.
What is the recommended daily intake of potassium?
The FDA’s daily value for potassium is 4,700 mg for adults. Potassium supplements typically provide 99 mg per serving due to regulatory limits on single-dose potassium in dietary supplements.
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