Prevention of osteoporosis: vitamin D will not help you
Vitamin D does not prevent osteoporosis
Vladislav Vorotnikov, Medlinks.ru , according to Medical News Today: Vitamin D supplements do not prevent osteoporosisTaking vitamin D supplements does not improve bone mineral density, scientists have found.
The results of the latest study were published in the Lancet journal (Reid et al., Effects of vitamin D supplements on bone mineral density: a systematic review and meta-analysis).
Almost half of the adult population in the United States aged 50 years and older uses vitamin D supplements to prevent osteoporosis. However, in a new study, scientists from New Zealand concluded that it makes no sense to continue using vitamin D supplements to prevent osteoporosis in healthy adults.
"Most healthy adults don't need vitamin D supplements. The results of our study demonstrated that the actions of low doses of vitamin D are aimed only at those who do not have sufficient resources for the production and release of vitamin D," explains Professor Ian Reid, lead author of the work.
Professor Reed and his colleagues from the University of Auckland conducted a systematic review and meta-analysis of all randomized studies on the effects of vitamin D supplementation on bone mineral density in healthy adults.
According to the American Academy of Surgeons, osteoporosis affects 10 million people in the United States and another 18 million are at risk of developing the disease.
Bone mineral density is a measure of bone strength. When determining the mineral density of bone tissue, the density of minerals (for example, calcium) is measured.
The measurement of mineral density is performed on one of five sites: the lumbar spine, the femoral neck, the thigh itself, the trochanter of the femur (on the border with the thigh body there are two rough processes — the large and small trochanter), the bones of the forearm. Since the skewers are the main component of the common hip, the measurement results in this area were included in the common hip.
Analysis of data from 23 studies involving 4,082 healthy adults (average age 59 years) He did not reveal any positive effects in people who additionally took vitamin D for an average of 2 years, with the exception of small, but statistically significant, increases in bone mineral density (by 0.8%) in the femoral neck. According to the authors, such a localized positive effect is unlikely to have significant clinical significance.
"This systematic review provides very little evidence of the effect of vitamin D on bone density. The continued use of vitamin D for the prevention of osteoporosis in adults without specific risk factors for its development is unreasonable," the authors of the work comment.
For people with normal bone density and adequate intake of calcium with food, there is absolutely no need for additional vitamin D intake.
Portal "Eternal youth" http://vechnayamolodost.ru14.10.2013