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Revista chilena de nutrición

On-line version ISSN 0717-7518

Abstract

FUENTES-BARRIA, Héctor et al. The role of vitamin D in preventing falls in subjects with sarcopenia part II: Older adult's vitamin D requirements. Rev. chil. nutr. [online]. 2020, vol.47, n.5, pp.830-835. ISSN 0717-7518.  http://dx.doi.org/10.4067/s0717-75182020000500830.

The objective of this review was to update the evidence on serum vitamin D requirements for risk prevention of falls in older adults with sarcopenia. Sarcopenia is not yet clearly defined but can be understood as a decrease in muscle mass, strength, and function. In older adults, serum deficiency levels of 25-hitroxyvitamin D <20 ng/ml or <50 nmol/l have been associated with loss of muscle mass, while an optimal level of between 30 to 150 ng / ml or 75 to 375 nmol/l has been associated with improvements in muscle function in the lower extremities. On the other hand, the state of acute toxicity (>150 ng /ml or 375 nmol/l) is produced by the supplementation of mega-doses of 10,000 IU/day or 300,000 IU/monthly, while chronic toxicity occurs at serum levels between 50-150 ng/ml or 125-375 nmol/l product of a dose >4,000 IU/day. This review concludes that vitamin D probably does not affect the risk of falls in older adults. However, in those groups suffering from sarcopenia or hypovitaminosis, there may be unconfirmed and controversial associations.

Keywords : Accidental Falls; Dietary Supplements; Elderly; Sarcopenia; Vitamin D.

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