answered Jul 14, 2010 at 03:32AM
While there is no proof that aspartame causes dementia, the rule of thumb is any artificial ingredient in excess could be a poison. I have a diet Pepsi every once in a while but I would not want to find out what will happen if I have excess. Dementia can be a slow process over several years. There could be additional factors that may be reversing the effects of excessive aspartame. It would be hard for any study to pin down the effects of a single dietary ingredient with so many variables. Cigarette smoking does not shorten the life of every smoker that does not mean it is safe and most will agree that it is not.