The above graph illustrates what percentage of the population will enjoy optimal benefits from supplementing extra Vitamin C - not counting dietary sources of Vitamin C. These amounts are based on average, cellular requirements of Vitamin C, which go beyond the recommended deficiency-preventive RDA DRI minimum intake. Instead, they take into account the synergistic and antagonistic effect of all other nutrients that interact with Vitamin C as well, to encompass a much wider scope of disease prevention... Full Text

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...