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Acesulfame Potassium - The Facts, Safety and Benefits

Updated: 06/28/2017

What is Acesulfame Potassium, Acesulfame-K, or Ace-K?

      Acesulfame potassium (frequently called Ace-K or Acesulfame-K) is a sugar free and calorie-free sugar substitute discovered in 1967 and made commercially available in the late 1980s. It's often used along with other sugar substitutes in sugar free drinks and various foods to mask any sweetener aftertaste and emulate the taste of sugar as closely as possible. Since its temperature stable, acesulfame-k can be used in both cold and hot beverages without any effect on its sweetness. Although acesulfame potassium is popular within the food and beverage industries under the name Sunett from Celanese Corp [1a], it's also available for home use under the brand name "Sweet One" directly from Cumberland Packing Corp [1b].

Is Acesulfame Potassium (Ace-K) Safe?

      According to the National Cancer Institute, USFDA approved acesulfame potassium has been well studied (over 100 studies) and deemed safe for consumption across all population segments with no evidence of carcinogenic effects [2]. Additionally, the International Food Information Council has stated that since 1988 acesulfame potassium has been found to be safe on multiple occasions by various international agencies, with each finding based on a multitude of scientific research studies. Those agencies include the World Health Organization, the Joint Expert Committee on Food Additives and the Scientific Committee for Food of the European Union[3]. Even though this is the case, if you're pregnant, acesulfame potassium is recommended in moderation by the American Pregnancy Association and there's no mention of whether it's safe to use while breastfeeding - if solid data on this becomes available, this article will be updated accordingly [4].

What Are The Benefits of Acesulfame Potassium (Ace-K)?

      Since acesulfame potassium doesn't get metabolized like natural sugar does, it doesn't increase blood glucose levels and is considered a calorie free and sugar free sweetener which is crucial for anyone watching their sugar or caloric intake. Acesulfame potassium is one of the many sugar substitutes recommended by the American Diabetes Association for diabetics to try in place of sugar[5]. Additionally, there's no danger of tooth decay if using just pure Ace-K.


1a. "Sunett Sweetener - Preserving Taste and Reputation". 2017.

1b. "Sweet One". 2017.

2. "Artificial Sweeteners and Cancer". National Cancer Institute at the National Institutes of Health.

3. "Everything You Need to Know About Acesulfame Potassium". International Food Information Council.

4. "Artificial Sweeteners and Pregnancy". 2015.

5. "Low-Calorie Sweeteners: What's News, What's New". American Diabetes Association. Diabetes Spectrum (Journal).

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