Many studies have reported associations between low vitamin D levels and poor health outcomes. However it is not known if routine vitamin D supplementation would improve health outcomes. A new study reports that vitamin D supplements, despite their popularity, do not seem to have significant benefits for heart health, cancer prevention or even bone health in healthy people. Despite the reported lack of benefits of vitamin supplementation in healthy people, it must be emphasized that people with true vitamin deficiency should still receive treatment to correct the deficiency. Vitamin D deficiency can result in osteomalacia, a condition marked by inadequate mineralization of bones. This can give rise to body aches, muscle weakness and bone fragility.