3. Weight Gain
Contrary to popular belief, aspartame does not help you lose weight. In fact, it can do quite the opposite and actually make you gain weight. There have been many recent studies conducted that show that consuming artificial sweeteners disrupts the metabolic response within the body. One of the reasons for this is because artificial sweeteners provide a sweet taste, in some cases it is hundreds of times sweeter than regular sugar and this sweetness does not match the energy or the calories that the foods provide.
The body is designed to relate the sweet flavor to how it should be metabolized. When the sweetness is matched by the calories, the body is satisfied. When the sweet flavor is not followed by the right amount of calories, the brain does not get the same message. This can cause the brain to signal that it needs more, which messes up your metabolism.