Vitamin D is typically made by the body when the skin is exposed to sunlight. It is also added to milk. In this day and age where skin cancer is a big worry and many people dont drink a lot of milk, vitamin D levels have dropped so low that three out of four Americans dont have enough vitamin D to support optimum health.
The body uses vitamin D to support bone health. Deficiencies can cause soft, thin, and brittle bones. In children this condition is called rickets; it is also referred to as osteoporosis. Vitamin D aids the body in the absorption of calcium, phosphorous, and magnesium. These elements are then used to strengthen bones. Vitamin D-3 (1000 IU) contains cholecalciferol, a bioactive form of vitamin D that is more easily absorbed and used by the body.
The immune system also relies on Vitamin D to fight viruses and bacteria. It is also an important nutrient used to support the nervous system. Vitamin D is used to treat diabetes, hypertension, and multiple sclerosis.