E577 / Acidity regulators & anti-caking agents
Potassium gluconate
Safety in brief
Safe
Recorded EatMatrix rating, not a new clinical review. The amount, your sensitivities and country rules still matter.
- Watch for
- No allergen or sensitivity is recorded for this ingredient here. Check the whole product label; this is not an allergen-free guarantee.
- Our advice
- Read the whole food label and consider how often you eat the product. A name or E number does not tell you the amount, and an ingredient rating cannot assess the entire food.
What it is
Potassium gluconate (E577) is the potassium salt of gluconic acid, used in food as a stabilizer and sequestrant, and in dietary supplements as a source of potassium. It is generally recognized as safe at typical use levels.
Also appears on labels as: Potassium gluconate, Potassium D-gluconate, Gluconic acid potassium salt, Potassium salt of gluconic acid, K-gluconate, Potassium gluconate food grade, Food additive E577, C6H11KO7, Potassium gluconate powder, Potassium gluconate supplement, INS 577, E577.
Dietary information
- Vegan
- Yes
- Halal
- Yes
- Gluten-free
- Yes
- Allergens
- None recorded
Recorded ingredient information. Check the product label or certification: sources, other ingredients and cross-contact can vary.
Research & body effects
Health notes from our ingredient record
- Generally recognized as safe at typical food-use levels for the general population.
- People with kidney disease or those on potassium-restricted diets should be mindful of the added potassium, especially from supplement-level use.
Other references from our ingredient record
These links come from the original ingredient record. They are separate from the source reviews above and have not all been checked for the exact ingredient, amount consumed or claim. Dates are shown newest first.
- Potassium Gluconate: Nutritional Benefits and Safety Profile — International Food Safety Research Institute, Journal of Food Safety and Nutrition (2024). A comprehensive evaluation of potassium gluconate (E577) examining its dual role as a food additive and nutritional supplement. The research confirmed that potassium gluconate, used as a sequestrant and stabilizer, provides additional nutritional benefits due to its potassium content. The study noted its excellent bioavailability and safety profile, with no adverse effects reported at approved usage levels. The assessment supports its continued use in various food applications while contributing to dietary potassium intake.[safe]
Country rules
Country checks for E577
Permission depends on the market, type of food, amount and conditions. A scientific opinion or an E-number alone does not establish a legal use. These checks are separate from the stored EatMatrix rating.
Compare all eight markets and their sources
| Market | What is checked |
|---|---|
| European Union | Regulation (EC) 1333/2008, Annex II Part B, version , contains the exact code E577: Potassium gluconate. Listing alone does not allow every food use. Part E food categories, limits, specifications and applicable later acts still need a product-specific check. Source read: . |
| Great Britain | The FSA register record for E577 (Potassium gluconate) lists “Authorised” in England, Scotland and Wales. Register updated: 01 April 2025; record checked: . Food-specific conditions and specifications still need a separate legal check. |
| United States | Complete current-use review pending. Any scoped provision in the label guide above applies only to the stated use. FDA explains the applicable food-additive and GRAS framework. |
| Northern Ireland | Review pending. Check the applicable EU rules and territory arrangements; the GB register alone does not establish this status. FSA guidance is a starting source, not a verified permission for this entry. |
| Canada | Exact use and legal category need confirmation No exact additive-use row was found for this mineral salt. CFIA distinguishes mineral nutrients and supplemental ingredients from listed technological additive uses. A nutrient role does not authorize a technological use automatically. EatMatrix reading: Match the exact salt, intended purpose, product category and applicable fortification or supplemented-food rules. Another mineral salt’s permission is not transferable. Name and category review: . This describes the legal source check, not a finding that the ingredient is safe, unsafe or untested. Sources and names checkedNames checked: Potassium gluconate; Potassium Gluconate; Ferrous Lactate; Zinc Acetate. All 15 Health Canada permitted-additive lists were checked by exact name, with the reviewed alternatives above. E-numbers alone are not Canadian ingredient names. The Justice Canada consolidation read was current to 21 September 2026. A complete product decision also requires its composition, specifications, intended food and use, quantities, applicable separate provisions and any later changes. |
| Australia | Review pending. Food Standards Code permissions and conditions need an additive-specific check. FSANZ food-additive rules is a starting source, not a verified permission for this entry. |
| New Zealand | Review pending. Food Standards Code permissions and conditions need an additive-specific check. FSANZ food-additive rules is a starting source, not a verified permission for this entry. |
| Japan | Review pending. The relevant list, identity and use standards need an additive-specific check. CAA food-additive lists is a starting source, not a verified permission for this entry. |
Sources & review status
Check what each source covers: an authority’s conclusion, a research finding and a country’s legal permission answer different questions.
What this guide covers
- Original ingredient record
- 1 research link; newest recorded date: . Sources added separately to this guide are not included in this count.
This guide brings together our ingredient record and the dated sources shown here. Missing information describes a gap in this guide; it does not mean an ingredient is untested, safe or harmful. This is not a complete review of every study, preparation or current country rule. The amount in a product and how it is used still matter.
How to read the ratings, research and country checksAgency labels recorded by EatMatrix
These are imported database classifications, not verified current statements from each authority. Use the dated official sources below for their actual scope and conclusions.
| Authority | Database label |
|---|---|
| FDA | Safe |
| WHO | Safe |
| EFSA | Safe |
| FSANZ | Safe |
| Japan | Safe |
| UK FSA | Safe |
| Health Canada | Safe |
Database updated: . What does an E number mean on a food label?
Common questions
Frequently asked questions
What is EatMatrix's recorded rating for E577?
The recorded EatMatrix rating for E577 (Potassium gluconate) is “Safe”. It is calculated from labels stored in our ingredient database. These labels are not verified current regulator decisions or country permissions. A database update date is not a scientific review date.
Is E577 vegan, halal or gluten-free?
According to our ingredient data for Potassium gluconate — vegan: yes, vegetarian: yes, halal: yes, kosher: yes, gluten-free: yes, dairy-free: yes. Manufacturing sources can vary between products; check the label if it matters to you.
What is E577 and why is it used?
Potassium gluconate (E577) is the potassium salt of gluconic acid, used in food as a stabilizer and sequestrant, and in dietary supplements as a source of potassium. It is generally recognized as safe at typical use levels.
Does E577 contain allergens?
No known allergens are recorded for Potassium gluconate.
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This page shows information and classifications recorded in our ingredient database. Current scientific and market-specific verification remains pending as described above. It is general information, not medical advice.