Both, germanium and silicon have somewhat of a blood thinning effect: Germanium, by inhibiting calcium and increasing phosphorus and silicon, by inhibiting magnesium and increasing sodium retention. Individuals who most benefit from extra germanium are those who would generally also benefit from the blood-thinning effect of alcohol, but for whatever reason will not, or cannot consume any... 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...