Artificial sweeteners like aspartame might be associated with an increased risk of certain types of cancer. In a new study published in the journal PLOS Medicine, French researchers analyzed data from over 100,000 adults. They found that the participants who consumed the most artificial sweeteners in their diets, especially aspartame and acesulfame-K, had higher risks of developing cancer, especially breast cancer and obesity-related cancer. This study doesn’t prove that these artificial sweeteners caused the cancers but were only associated with them. More large-scale studies are needed. Artificial sweeteners have become more popular in recent years with more attention being given to the health risks of excessive sugar. But these researchers argue their findings show that artificial sweeteners might not be safe alternatives for sugar in foods or beverages.