Nutrient Power presents a science-based nutrient therapy system that can help millions of people diagnosed with mental disorders. This approach recognizes that nutrient imbalances can alter brain levels of key neurotransmitters, disrupt gene expression of proteins & enzymes, & cripple the body's protection against environmental toxins. William Walshs database containing millions of chemical factors in blood, urine, & tissues has identified brain-changing nutrient imbalances in patients diagnosed with autism, depression, schizophrenia, & Alzheimer's disease.