We have said it before and will say it again; the overwhelming body of scientific evidence does not support claims that consuming aspartame in food and beverages causes cancer.
Organizations such as the U.S. Food and Drug Administration (FDA), the European Food Safety Authority (EFSA), the British Food Standards Agency, the European Union Scientific Committee on Food, the World Health Organization (WHO) and regulatory agencies in more than 100 countries have declared the ingredient as safe. The American Medical Association, the Academy of Nutrition and Dietetics (formerly the American Dietetic Association) and the American Diabetes Association also recognize aspartame as safe for use.
Aspartame has been tested continuously since its introduction and its safety has been consistently re-affirmed. A study conducted by government researchers at the National Cancer Institute involved more than 500,000 people, including those who drank the equivalent of three or more diet soft drinks every day for almost a decade. It found that there was no increased risk of any type of cancer even among those who consumed the most aspartame. In fact, since aspartame was first introduced, no scientific evidence has been found linking it to any disease in humans.
Still have questions about the rumors surrounding aspartame and other low- and no-calorie sweeteners? Check out LetsClearItUp.org for more information.