High levels of fluoride and or chloride can trigger ringing noises in the ear, and may eventually lead to progressive hearing loss. No extra beta-carotene should be supplemented in those instances, but only preformed Vitamin A, if deficient... Full Text
Dr. Ronald Roth's Research Library on Cellular Nutrition and Health Disorders
Manganese may help with some symptoms of Parkinson's disease such as muscle rigidity and twitching...
Research shows that phytosterols such as beta-sitosterol may help normalize the function of natural killer cells and T-helper lymphocytes...
Iron deficiency may be suspect with some forms of ADHD. 84% of children with ADHD were found to have abnormally low levels of ferritin...
A high intake of B Vitamins can trigger heart palpitations, HBP, major complications in patients with congestive heart disease...