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Also known as acesulfame K or Ace-K, the ingredient is a calorie-free sweetener found in sugar-free products. Alone, it’s a white crystal powder with a slightly bitter after-taste. Because of this taste, it’s often blended with other sweeteners like sucralose (used in Splenda) or aspartame (used in Equal) — both controversial in their own right.
Ace-K can be found in soft drinks, protein shakes, drink mixes, frozen desserts, baked goods, candy, gum, and tabletop sweeteners. The Food and Drug Administration (FDA) approved of Ace-K’s use in soft drinks in 1998, increasing consumer exposure to the ingredient.
Though it’s considered safe by the FDA, some are convinced it has potentially dangerous health effects.
The first safety tests on Ace-K were conducted in the 1970s. Among other things, these tests indicated the compound could be carcinogenic, or cancer-causing, in rats. The validity of these tests has been called into question over the years. The safety tests that laid the groundwork for Ace-K’s bad reputation had
However, the controversy of their results remains. In 1996, the Center for Science in the Public Interest (CSPI) urged the FDA to do more testing on Ace-K before allowing its inclusion in soft drinks. The CSPI is among several agencies that say, although the initial safety testing of the 1970s was flawed, current research doesn’t prove Ace-K’s safety.
Finally, a study determined that the chronic use of Ace-K in male mice was linked to possible changes in brain function over a period of 40 weeks.
However, even with contrary evidence from the CSPI and elsewhere, the FDA and the European Union’s consumer protection agency are among those who maintain that Ace-K is safe.
If you take a better-safe-than-sorry approach when it comes to food additives with controversial backgrounds, it may be best to steer clear of Ace-K.
By reading the labels of the foods and drinks you purchase, you should be able to identify the sweetener. It will be listed as acesulfame potassium, acesulfame K, or Ace-K, according to the
Because it’s a non-sugar sweetener, you will largely find it in sugar-free or low-sugar products. Diet sodas may be sweetened with a combination of Ace-K and other artificial sweeteners.