MSM would help with the ADD as well, it seems to me. From msminfo
The brain is extremely sensitive to the effects of toxic materials such as heavy metals and organic compounds. Many of these compounds tend to accumulate in nerve cells where they can cause severe oxidative damage. Neurological disturbances such as Alzheimer's and Parkinson's disease, may be the result. MSM is one of the few antioxidants which can easily pass the blood-brain barrier. It prevents and repairs oxidative damage and restores cell membrane elasticity and permeability. This allows the nerve cells to start excreting waste products.