Imagine there is a supplement or drug that strengthens your bones, boosts your immune system, prevents autoimmune diseases, aids in weight loss, helps prevent cancer, and It doesn't cost you a cent. Research has led many to believe that this supplement actually exists and is called vitamin D. Deficiency Vitamin D deficiency is one of the fastest growing epidemics in the world today. About 75 percent of U.S. adolescents and adults have low vitamin D levels. Some experts attribute the high rate of vitamin D deficiency to the increased use of sunscreen and long-sleeved shirts following recent skin cancer prevention campaigns …But a person does not need to tan or sunburn to get vitamin D. (Lite 1) Vitamin D deficiency occurs when a person does not have enough vitamin D in their body. Vitamin D deficiency not only can interfere with bone mineralization in children, but has also been linked to an increased risk of cancer, falls, cardiovascular disease, osteoporosis, hypertension, and changes in glucose and lipid metabolism. (Cherniack 1)(Pediatr...