Aspartame has brought more complaints to the FDA than any other additive-ever. It's responsible for a full 75 percent of the complaints the agency gets. From 10,000 consumer complaints, the FDA compiled a list of 92 symptoms, including death.
Not only has aspartame been proven to make you fatter, it's been proven to cause some pretty serious diseases, not the least of which are cancer and neurological diseases.
Sure, the marketing geniuses would have you think it's health food, but the truth paints a very different picture. Over the years, various reports have implicated aspartame in headaches, memory loss, seizures, vision loss, coma, and cancer. It also appears to worsen or mimic the symptoms of such conditions as fibromyalgia, MS, lupus, ADD, diabetes, Alzheimer's, chronic fatigue, and depression.
In terms of toxicity to the body diet soda is much more dangerous than cannabis. (In fact THC or any form of marijuana when ingested is non-toxic to the human body)