Low vitamin D levels lead to poor physical performance in the elderly

In a recent study, researchers examined the association between vitamin D status and physical performance. Among subjects with low vitamin D levels, physical performance and grip strength were significantly lower than that of participants who did not have reduced levels.

In addition to its role in bone health, vitamin D is thought to play a role [...]

Low levels of vitamin D are common among healthy children

Vitamin D is essential for normal growth and development in children, yet many children who are otherwise healthy may have inadequate blood levels of vitamin D. A vitamin D deficiency in childhood may lead to muscle weakness, defective bone mineralization, and rickets .

 A study recently published in the American Journal of Clinical Nutrition found that [...]

Vitamin D insufficiency widespread even in sunny climates

It is well-established that vitamin D deficiency or insufficiency is very common among northern populations. However, there is little information on the prevalence of vitamin D deficiency in southern climates with high sun exposure. A recent study shows that adult residents of southern Arizona are commonly deficient in vitamin D despite living in an area [...]