ASPARTAME (NutraSweet® & Equal®) Aspartame accounts for over 75% of the adverse reactions to food additives reported to the FDA. Many people who have eaten large amounts of aspartame over a long period of time & do not have PKU have been shown to have excessive levels of phenylalanine in the blood. Excessive levels of phenylalanine in the brain can cause the levels of serotonin in the brain to decrease, leading to emotional disorders such as depression. It was shown in human testing that phenylalanine levels of the blood were increased significantly in human subjects who chronically used aspartame.

↑ brain levels
↓ liver functioning
↓ kidney functioning