1500 mg/day of calcium, 400 to 800 U/day of vitamin D.
Adequate calcium and vitamin D intake should be a part of the prevention and treatment of osteoporosis. Dietary intake of calcium should be 800 to 1000 mg/day in childhood through early adulthood, 1000 to 1200 mg/day in the middle years, and 1500 mg/day in the elderly. If osteoporosis is established, the treatment includes 1500 mg/day of calcium and 400 to 800 U/day of vitamin D.
