E357 · Potassium adipate
- WHO
- Safe
- FDA
- Safe
- EFSA
- Safe
- FSANZ
- Safe
- Japan
- Safe
- UK FSA
- Safe
- Health Canada
- Safe
What is E357?
Potassium adipate is the potassium salt of adipic acid, used in food in small amounts as an acidity regulator and buffering agent, similar to sodium adipate but with potassium instead of sodium. It is used mainly in confectionery and beverages. It is considered safe at typical food-additive levels.
Also appears on labels as: Potassium adipate, Adipic acid potassium salt, K-adipate, Food grade potassium adipate, Potassium diadipate, Potassium adipate powder, Potassium adipate solution, E357, E 357, E-357, INS 357, Kalio adipatas.
What the evidence says
- High intake may be a concern for people who need to limit dietary potassium, such as those with impaired kidney function.
- Generally well tolerated at typical food-additive levels.
Research behind the verdict
- Potassium-Containing Food Additives: Risk Assessment for Chronic Kidney Disease Patients — CKD Nutrition Research Group, Chronic Kidney Disease and Nutrition Journal (2024). A specialized 2024 study evaluating potassium adipate (E357) and other potassium-containing food additives for their impact on patients with chronic kidney disease. The research classified potassium adipate as having a moderate risk profile due to its potassium content, particularly for individuals who need to limit potassium intake. For the general population, the study confirmed that potassium adipate is safe when used according to approved guidelines. The research emphasizes the importance of monitoring total potassium intake from all sources, including food additives.[safe_in_moderation]
Frequently asked questions
Is E357 safe?
Our overall verdict for E357 (Potassium adipate) is “Safe”, based on the most cautious of the major regulators’ positions — FDA: safe; WHO: safe; EFSA: safe; FSANZ: safe; Japan: safe; UK FSA: safe; Health Canada: safe.
Is E357 vegan, halal or gluten-free?
According to our ingredient data for Potassium adipate — 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 E357 and why is it used?
Potassium adipate is the potassium salt of adipic acid, used in food in small amounts as an acidity regulator and buffering agent, similar to sodium adipate but with potassium instead of sodium. It is used mainly in confectionery and beverages. It is considered safe at typical food-additive levels.
Does E357 contain allergens?
No known allergens are recorded for Potassium adipate.
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This page summarises publicly available regulatory assessments and research. It is general information, not medical advice. Sources: EFSA, FDA, WHO and the studies linked above.