Is Aspartame Good or Bad for You? Aspartame is one of the most controversial sweeteners in the world. It is claimed to cause health problems ranging from headaches to cancer. On the other hand, food safety authorities and other mainstream sources consider it to be safe.Click to see full answer. Likewise, people ask, what are the dangers of aspartame?John Olney, M.D. and James Turner, released their findings regarding the toxic effects of aspartame. They found that aspartame could cause brain damage and was dangerous for people with PKU (Phenenlyketonuria), a genetic disease that causes people to be unable to break down phenylalanine.Also, why is aspartame still on the market? NutraSweet to exit artificial sweetener aspartame business. Artificial sweetener maker NutraSweet said on Wednesday it would exit its aspartame business by the end of the year, citing increasing foreign competition. Aspartame, which is about 200 times sweeter than sugar, is widely used to sweeten diet sodas. Also asked, is aspartame worse than sugar? Aspartame contains 4 calories per gram (g), similar to sugar. It is, however, around 200 times sweeter than sugar. This means that only a tiny amount of aspartame is necessary to sweeten foods and drinks. For this reason, people often use it in weight-loss diets.Is aspartame banned in US?U.S. FDA approval. Aspartame was originally approved for use in dry foods in 1974 by then FDA Commissioner Alexander Schmidt after review by the FDA’s Center for Food Safety and Applied Nutrition. In December 1975, the FDA placed a stay on the aspartame approval, preventing Searle from marketing aspartame.