In fact I pulled this out of a medical database:
A) MAXIMUM DOSE
1) Ingestion of aspartame 50 milligrams/kilogram/day has no toxic effects and has been established by the FDA as the acceptable daily intake. This amount is equivalent to a daily consumption of approximately 17 twelve-ounce cans of 100% aspartame sweetened soft drink by a 70 kilogram (154 lb) person (Anon, 1987).
Just to provide more support for the facts you can go to this article on WebMD that provides insight http://www.webmd.com/diet/sodas-and-your-health-risks-debated?page=4. Basically, these studies are alarmist drivel. Even the studies that state that your brain processes the sweetener as sugar are not really studies, but opinions from researchers based on personal bias.
Does this mean that some people can’t have an allergy to the chemical? Of course not. I have allergies to stupid people. Taken in small doses I’m OK. However too many cause me to have an overwhelming desire to beat them about the head and neck with a baseball bat. I’m taking medication for the issue, but even the best drugs in the world can’t cure everything. Besides…some of them really need a whack in the head.
If you still have difficulty with this just keep in mind, none of what I posted is my opinion. It is science, based on pure scientific findings and not on half-baked articles in non-medical journals based on studies of 100 people or less who had so many major physical problems it was impossible to tell what was killing them in the first place. In fact, all scientists will tell you that unless you discount other lifestyle factors you will never get a complete study of anything. This is why I’m always amused when someone states that diet drinks are linked to stroke, cardiac arrest, impotence, cancer, and diabetes and then when I read the study I find that it was a study of 50 people, all who are 100 to 300 pounds overweight and are all on a constant diet of bacon fat and lard. Of course they’re going to have a heart attack. With those types of study subjects I could say Sesame Street caused their heart attack. It wouldn’t make it true!