Drinking diet drinks with aspartame might be linked to a higher chance of certain cancers in older Americans, especially in the gut and reproductive organs, but it doesn’t seem to matter if someone is already overweight, and more aspartame doesn’t clearly mean higher risk.

Drinking diet drinks with aspartame might be linked to a higher chance of getting cancer, according to a big study of U.S. adults — but we can't say for sure it's the aspartame causing it.

Eating more aspartame doesn’t seem to increase cancer risk in a predictable way, so if there’s any link, it’s probably because of other factors — not because aspartame directly causes cancer.

People who eat or drink things with aspartame (like diet soda) might be more likely to get cancer or stroke, based on a big study of over 100,000 French adults followed for about 8 years.

Some studies say eating aspartame doesn’t mess up your metabolism, but the studies aren’t very strong or many — they just watched people instead of testing them in controlled experiments.

Drinking diet sodas or using artificial sweeteners like aspartame or saccharin doesn’t seem to raise your chances of dying from cancer, according to a big long-term study of U.S. adults.