Osteoporosis: effects of calcium.

Bone loss coincides with the reduced physical activity of both sexes in later years, vigorously aggravated by age-associated hormonal changes in women and chronic inadequate intake of calcium. In the absence of preventive dietary measures, osteoporosis may become a major health problem for America's fastgrowing senior female population. Bone loss and fracture risk may be minimized or reversed by a daily intake of approximately 1 Gm. of calcium derived from the diet or through supplements.