16 Reasons to Avoid Soda - What Happens to Your Body When You Drink Soda

Dangers of Artificial Sweeteners: 
Most types of diet soda contain some type of artificial sweetener. Sweeteners, such as sucralose (Splenda), saccharin, and aspartame, are associated with several health problems, including lupus, glucose intolerance, and multiple sclerosis. (6) Aspartame, also known as NutraSweet and Equal, is associated with increased incidence of brain tumors, mood disorders, declining mental function, migraines and seizures.