Archives of Pediatrics & Adolescent Medicine, one of the JAMA/Archives journals, has published an article showing that vitamin D intake can lower stress fracture risk in girls, especially in regards to injuries caused by high impact style activities.
Stress fractures are a common injury, often related to sports or physical activity. Essentially, the damage occurs when the bone is not able to withstand the pressure and force it is put under. They can also develop over time from repeated impact that might not initially cause any noticeable injury, but after multiple stress episodes become something of a problem to the bone structure.
Vitamin D appears to have been particularly important in maintaining healthy bones, able to withstand high impact events, particularly in those girls involved in an hour or more per day of high stress activity.
The authors of the study noted, "there was no evidence that calcium and dairy intakes were protective against developing a stress fracture or that soda intake was predictive of an increased risk of stress fracture or confounded the association between dairy, calcium or vitamin D intakes and fracture risk."
The authors conclude that their findings support the Institute of Medicine's recent increase in the recommended dietary allowance for vitamin D for adolescents from 400 IU/d to 600 IU/d.
Source: Medical News Today
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