FDA Status
Approved
Acesulfame Potassium (Ace-K) (E950), CAS 55589-62-3, is a sweetener additive holding a composite safety score of 3 out of 5 (Mixed Evidence). The U.S. Food and Drug Administration currently classifies it as Approved, while the European Union lists it as Approved. It is most commonly used as Diet soda, protein shakes, baked goods.
No U.S. state has enacted specific legislation targeting Acesulfame Potassium (Ace-K) to date, keeping federal FDA classification as the operative standard. State-level food safety legislation remains active nationally, and that picture may shift as new bills advance.
Peer-reviewed research has flagged 1 distinct area of health concern for Acesulfame Potassium (Ace-K), which factors directly into the assigned safety score. The European Food Safety Authority has published an evaluation dated 2016-04-05. All figures above draw on FDA SAFFA inventory records, EU food additive regulation (EC) No 1333/2008, EFSA scientific opinions where published, and legislative records from individual U.S. states.
Regulatory Snapshot
| Property | Value | Source |
|---|---|---|
| FDA Status | Approved | FDA SAFFA |
| EU Status | Approved | EC 1333/2008 |
| E-Number | E950 | EU additive register |
| CAS Number | 55589-62-3 | CAS Registry |
| Category | Sweetener | FDA functional class |
| Composite Safety Score | 3 / 5 (Mixed Evidence) | PlainIngredients methodology |
| EFSA ADI | Not established | EFSA scientific opinion |
| U.S. State Actions | 0 states | State legislative records |
| Tracked Products | Not yet tracked | Open Food Facts (US) |
Values reflect official agency classifications as published by the U.S. Food and Drug Administration and the European Union's regulatory framework. See our methodology for scoring details.
3.0 / 5
Composite Safety Mixed Evidence
Safety Score: 3 out of 5
Safety Rating 60.0%
EU Status
Approved
E950
U.S. State Regulations
0 states
None enacted
Safety Assessment
Acesulfame Potassium (Ace-K) receives a safety score of 3/5 (Mixed Evidence) based on a composite analysis of FDA regulatory status, EU approval, scientific literature on health effects, and state-level legislative actions. The FDA has approved Acesulfame Potassium (Ace-K) for use in food products under specified conditions.
Research has identified 1 area of health concern associated with Acesulfame Potassium (Ace-K). Consumers with specific health conditions should consult a healthcare provider before consuming products containing this ingredient.
What is Acesulfame Potassium (Ace-K)?
Artificial sweetener 200x sweeter than sugar.
Health Concerns
- CSPI rates as "avoid." Some cancer and thyroid concerns.
Common Uses
Diet soda, protein shakes, baked goods
Frequently Asked Questions
Is Acesulfame Potassium (Ace-K) safe to consume?
Acesulfame Potassium (Ace-K) has a safety score of 3/5 (Mixed Evidence). It is approved by the FDA for use in food. As with all food additives, moderation is advisable.
What is Acesulfame Potassium (Ace-K) used for in food?
Acesulfame Potassium (Ace-K) is commonly used as: Diet soda, protein shakes, baked goods. It belongs to the Sweetener category of food additives.
Is Acesulfame Potassium (Ace-K) banned in any US states?
Currently, no US states have enacted specific bans or regulations targeting Acesulfame Potassium (Ace-K). However, state food safety legislation is evolving rapidly.
What is the difference between FDA and EU regulation of Acesulfame Potassium (Ace-K)?
The FDA classifies Acesulfame Potassium (Ace-K) as "Approved", while the EU status is "Approved" (E950). The FDA and EU use separate evaluation frameworks — the EU often applies the precautionary principle, sometimes banning additives that remain approved in the US. Always check both jurisdictions when evaluating food additive safety.
What health concerns are associated with Acesulfame Potassium (Ace-K)?
Research has identified the following health concerns for Acesulfame Potassium (Ace-K): CSPI rates as "avoid." Some cancer and thyroid concerns.. These findings inform its safety score of 3/5. Consult a healthcare provider for personalized guidance, especially if you have pre-existing conditions.
How is the safety score for Acesulfame Potassium (Ace-K) calculated?
The safety score of 3/5 for Acesulfame Potassium (Ace-K) is a composite assessment based on FDA regulatory status, EU approval status, published scientific research on health effects, and state-level legislative actions. A score of 1 means "Banned / Avoid" and 5 means "Generally Safe." The score is updated as new regulatory actions or scientific evidence emerge.
Explore PlainIngredients
Related Data Sources
Data Sources
- FDA Substances Added to Food (SAFFA) Inventory
- EU Food Additive Regulations (EC) No 1333/2008
- State food safety legislation and bill records
Read our methodology — how this data is sourced, computed, and verified.
Related
Data sourced from official EWG, FDA GRAS, and ingredient toxicology databases. See our methodology for details. Retrieved and formatted by PlainIngredients Editorial