In other studies, the presence of aluminum has been linked to Alzheimer's disease, Parkinson's disease, brain tumors, learning problems and memory loss. While these metals have negative health impacts, several minerals were found deficient among the study population. Copper, zinc, iron, manganese, chromium, and germanium each function to keep organs, muscles, blood and tissues healthy. Each element has a separate function, but deficiencies in any of these elements can lead to health problems. For example, lower levels of chromium can change the function of insulin and result in severe glucose intolerance in diabetics.
Iron deficiencies can cause anemia and general fatigue.
Less than recommended amounts of zinc, important to the function of blood, organs and tissues, can cause slowed growth, delayed sexual maturity, and prolonged healing of wounds. As part of the study, researchers worked with participants to provide nutritional education and explanations regarding their individual mineral levels. Researchers also suggested avoiding white sugars, white flour, carbonated drinks, canned foods, caffeine, additives, and food coloring. Dr. Rosa also called for culturally sensitive health promotion programs. The conference is supported in part by the Centers for Disease Control and Prevention.