75 percent of Americans do not get enough vitamin D. Vitamin D is also believed to naturally decline in the body and become harder to absorb and synthesize as we age. New research suggests that use of sunblock with even a low SPF of 8 can reduce natural vitamin D production by 95 percent.

Adequate calcium and vitamin D throughout life, along with physical activity, may reduce the risk of osteoporosis in later life. Vitamin D promotes peak bone density and mineralization by optimizing absorption of calcium and phosphorus through the intestines. Vitamin D’s assistance in maintaining healthy calcium levels is also believed to play a part in promoting cardiovascular health. Through its roles in normal cell growth and metabolism, Vitamin D is believed to support breast, prostate and colon health. Vitamin D may also influence immune function by promoting activity of macophages and lymphocytes.