Calcium intake and osteoporosis
DOI:
https://doi.org/10.5433/1679-0367.2005v26n1p3Keywords:
Calcium Intake, Osteoporosis, Postmenopausal.Abstract
Osteoporosis is characterized by the reduction of bone mass and damage of the microarchitecture of bone tissue, with a consequent increase of bone fragility and susceptibility to fracture. In women, osteoporosis is associated with menopause, as the reduction of estrogens accelerates bone loss. Apart from the hormonal component, this illness can have other causes, amongst them: mechanical, genetic and nutritional. One of the nutritional components of great importance is calcium. About 99% of the corporeal calcium content is found in the skeleton, conferring rigidity and being a readily available source for the maintenance of the normal levels of plasma calcium concentration. Therefore, calcium is the most studied nutrient in the area of bone health and it is considered important for the prevention and treatment of osteoporosis. Some studies have shown a positive relation between calcium supplementation and reduction of bone loss in postmenopausal women. However, some doubts concerning this effect still persist. The objective of this work is to revise the relation between calcium intake and bone health, focusing on osteoporosis prevention and/or treatment in women.
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