What Is Acesulfame Potassium (Ace-K)? Safety, Risks & Alternatives

⚡ Quick Facts

E-NumberE950
FDA StatusFDA-approved in 1988 for specific uses and as a general-purpose sweetener in 2003. ADI: 15 mg/kg body weight/day. FDA re…
EFSA StatusEFSA re-evaluated in 2000 and maintained approval with an ADI of 9 mg/kg body weight/day. EFSA concluded that Ace-K is n…
ADI9 mg/kg body weight/day (EFSA); 15 mg/kg body weight/day (FDA)
SeverityModerate Risk (6/10)

What Is Acesulfame Potassium (Ace-K)?

A calorie-free artificial sweetener approximately 200 times sweeter than sucrose. It is heat-stable, making it suitable for baking and cooking. Often blended with other sweeteners like aspartame or sucralose to mask its slightly bitter aftertaste.

Mechanism of Action

Ace-K is not metabolized by the body and is excreted unchanged through the kidneys. It stimulates sweet taste receptors (T1R2+T1R3) on the tongue. Some animal studies suggest it may affect gut microbiome composition and stimulate insulin secretion through sweet taste receptor activation in the gut, though clinical significance at typical dietary levels is debated.

Why People Avoid Acesulfame Potassium (Ace-K)

Regulatory Status

🇺🇸 FDA

FDA-approved in 1988 for specific uses and as a general-purpose sweetener in 2003. ADI: 15 mg/kg body weight/day. FDA reviewed over 90 studies before approval.

🇪🇺 EFSA

EFSA re-evaluated in 2000 and maintained approval with an ADI of 9 mg/kg body weight/day. EFSA concluded that Ace-K is not carcinogenic and does not pose a safety concern at current usage levels.

Regulatory Timeline

1967 Discovered by Karl Clauss at Hoechst AG
1988 FDA approves for specific food categories
2000 EFSA confirms ADI of 9 mg/kg/day
2003 FDA approves as a general-purpose sweetener
2020 Ongoing research into gut microbiome effects

Products Containing Acesulfame Potassium (Ace-K) (10 found)

#ProductBrandScore
1MAX PROTEIN NUTRITION SHAKE, MILK CHOCOLATEAbbott Laboratories Inc 7/100
2Premier ProteinPremier Protein7/100
3VANILLA FLAVORED LIGHT GREEK NONFAT YOGURT, VANILLAWal-Mart Stores, Inc.7/100
4TOASTED COCONUT VANILLA LIGHT GREEK NONFAT YOGURT, TOASTED COCONUT VANILLAWal-Mart Stores, Inc.20/100
5SKITTLES ORIGINAL PERFORMANCE ENERGY DRINKWoodbolt Distribution, LLC24/100
6Fit&active on the go lemonade drink mix—24/100
7CREAMY MILK CHOCOLATE MEAL REPLACEMENT SHAKE, CREAMY MILK CHOCOLATEWal-Mart Stores, Inc.24/100
8Dr Pepper Zero SugarDr Pepper36/100
9GREAT VALUE, LIGHT GREEK NONFAT YOGURT, VANILLA, VANILLAGrunland Allgauer Kasewerke Gmbh68/100
10GREAT VALUE, NANFAT YOGURT, BLUEBERRY, BLUEBERRYWal-Mart Stores, Inc.68/100

Average safety score for products containing Acesulfame Potassium (Ace-K): 29/100

Safer Alternatives

✅
Stevia (steviol glycosides)
✅
Monk fruit extract
✅
Allulose
✅
Erythritol

Scientific Sources

  1. FDA (2003). Food Additives Permitted for Direct Addition to Food: Acesulfame Potassium
  2. EFSA (2000). Opinion on Acesulfame K (E 950)
  3. Bian et al. (2017). The artificial sweetener acesulfame potassium affects the gut microbiome. PLOS ONE, 12(6)

Frequently Asked Questions

What is Acesulfame Potassium (Ace-K)?
A calorie-free artificial sweetener approximately 200 times sweeter than sucrose. It is heat-stable, making it suitable for baking and cooking. Often blended with other sweeteners like aspartame or sucralose to mask its slightly bitter aftertaste.
Is Acesulfame Potassium (Ace-K) safe?
Acesulfame Potassium (Ace-K) is FDA-approved in 1988 for specific uses and as a general-purpose sweetener in 2003. ADI: 15 mg/kg bod. EFSA re-evaluated in 2000 and maintained approval with an ADI of 9 mg/kg body weight/day. EFSA concl.
Where is Acesulfame Potassium (Ace-K) banned?
Acesulfame Potassium (Ace-K) is not currently banned in any major market according to our database.
What are alternatives to Acesulfame Potassium (Ace-K)?
Safer alternatives to Acesulfame Potassium (Ace-K) include: Stevia (steviol glycosides), Monk fruit extract, Allulose, Erythritol.
How can I avoid Acesulfame Potassium (Ace-K)?
Download CheckIt AI and scan any product's barcode or ingredient label. The app will flag Acesulfame Potassium (Ace-K) and suggest safer alternatives.
What foods contain Acesulfame Potassium (Ace-K)?
Acesulfame Potassium (Ace-K) is commonly found in: Diet sodas, Sugar-free gum, Protein shakes, Flavored water, Sugar-free pudding, Tabletop sweeteners. Our database has flagged it in 10 products.
What are the side effects of Acesulfame Potassium (Ace-K)?
Concerns about Acesulfame Potassium (Ace-K) include: Contains methylene chloride as a potential processing solvent, which is a suspected carcinogen; Animal studies suggest possible effects on gut microbiota; Some individuals report a bitter or metallic aftertaste.
Is Acesulfame Potassium (Ace-K) natural or artificial?
Acesulfame Potassium (Ace-K): Ace-K is not metabolized by the body and is excreted unchanged through the kidneys. It stimulates sweet taste receptors (T1R2+T1R3) on the tongue. Som.
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Compare Acesulfame Potassium (Ace-K)

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⚕️ This page provides ingredient information for educational purposes only. It is not medical advice. Consult a healthcare professional for personalized dietary guidance.

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📋 Cite This Data
APACheckIt AI. (2026). "What Is Acesulfame Potassium (Ace-K)? Safety, Risks & Alternatives | CheckIt AI". Climaverse PBC. Retrieved from https://getcheck.it/ingredients/acesulfame-potassium
MLA"What Is Acesulfame Potassium (Ace-K)? Safety, Risks & Alternatives | CheckIt AI." CheckIt AI, Climaverse PBC, 2026-03-05. https://getcheck.it/ingredients/acesulfame-potassium.
HTML Embed<a href="https://getcheck.it/ingredients/acesulfame-potassium">What Is Acesulfame Potassium (Ace-K)? Safety, Risks & Alternatives | CheckIt AI — CheckIt AI</a>
BibTeX@misc{checkit2026ingredientsacesulfamepotassium, title = {What Is Acesulfame Potassium (Ace-K)? Safety, Risks & Alternatives | CheckIt AI}, author = {CheckIt AI}, year = {2026}, publisher = {Climaverse PBC}, url = {https://getcheck.it/ingredients/acesulfame-potassium}, note = {Retrieved 2026-03-05} }