Contrary to the claims of uninformed sources, Low Stomach Acid does not pose a problem with calcium absorption, as even patients with no acid production are able to absorb calcium regardless of whether it comes in the form of calcium citrate, calcium carbonate, or milk. However low stomach acid affects the proper utilization of calcium, frequently resulting in calcium being deposited into soft tissue instead of bone, which as mentioned, increases the risk for developing arthritis, spurs, bone loss, cerebral and cardiovascular calcification, as well as other physical and mental disorders... 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...