A recent study conducted by the Institute of Medicine contends that most Americans receive enough vitamin D. This guideline states that a healthy vitamin D level is approximately 20 ng/mL, significantly less than the former benchmark of 30 ng/mL.
The research panel also developed new guidelines pertaining to daily allowances. It established that the 400 international units (IU) for children under 12 months, 600 IU for people below 70 and 800 IU for individuals older was safe and aided musculoskeletal well being.
The three sources of vitamin D are supplements, some foods and ultraviolet rays. According to Dr Martin A. Weinstock, from the department of dermatology in Rhode Island, many people do not get their recommended dose through consumption. Exposure to the sun provides the main source of vitamin D but is not always recommended due to the risk of skin cancer development.
An excess of vitamin D may lead to hypercalcuria, renal stones and other illnesses. Dr. Weinstock says that there is no hard evidence to directly link vitamin D with cancer.