Important mineral for your body. Almost all of your body's calcium is located in your bones and teeth. Best known for its role in building strong bones and teeth, it's also critical for muscle contraction, blood clotting, hormone and enzyme secretion, and your nervous system. Decreased risk of colon cancer, decreased risk of kidney stones and lead absorption, may reduce blood pressure, improve blood lipids when combined with low fat/cholesterol diet, may promote weight loss when combined with a low-calorie diet (source is dairy foods), may reduce PMS, may reduce pregnancy-induced hypertension. Develops slowly. Too little magnesium can cause tremors, muscle spasms, fatigue, depression, and anorexia. Rarely occurs from low dietary intake because the kidneys can regulate its level by excreting less of it as needed. Certain conditions like kidney disease and diabetes and some medications like diuretics and antibiotics can cause deficiencies. Consequences: irregular heartbeat, weakness, muscle pain, disorientation, seizures. Vulnerable populations: diuretic users, people who perspire heavily, people with long-term vomiting and diarrhea, alcoholics. Component of hemoglobin and myoglobin. Oxygen and carbon dioxide transport, component of enzymes and some proteins for energy production, brain and immune function, drug detoxification in liver, bone health. Symptoms of anemia: decreased oxygen-carrying capacity, pale skin, fatigue, apathy, decreased learning ability/work performance, poor temperature regulation, loss of appetite, low % RBC (hematocrit) or low hemoglobin concentration. High risk: infants, preschoolers, puberty, both men and women, childbearing years because of menstruation, pregnancy, blood loss from ulcers, colon cancer, or hemorrhoids, athletes, vegetarians. Once anemia has developed, iron supplements are the only reliable cure. Proven to play an important role in growth and development, the immune system and wound healing, taste acuity, neurological function, and reproduction. Cofactor for over 200 enzymes, DNA synthesis, protein metabolism, wound healing, growth, immune function, proper bone and sexual organ development, storage, release, and function of insulin, cell membrane structure and function, aids in the prevention of oxidative cell damage, component of superoxide dismutase. May also play a role in other conditions such as relieving the common cold, reducing age- related macular degeneration, and diabetes, further studies in these areas are warranted before any conclusions can be made. Infants and children, pregnant and breastfeeding women-especially teens, malnourished/anorexic individuals, those with malabsorption syndromes like celiac disease, those with inflammatory bowel disease, alcoholic liver disease, adults over 65 yrs, and strict vegetarians. Acne-like rash, diarrhea, lack of appetite, reduced sense of taste and smell, hair loss, poor growth, impaired sexual development, hampered learning ability.