There is also a synergistic and antagonistic interaction between Iron Manganese and B-Vitamins, whereby these interactions will change under various medical situations as well. For instances, with kidney disease, a fine balance needs to be maintained between folate and iron levels since one will otherwise inhibit the other. The same applies with adrenal disturbances, except they will affect the balance between iron and Vitamin B1... 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...