Researchers at University of Auckland in New Zealand have found that vitamin D supplements do not provide any benefits in improving bone strength and women who take the supplements to protect themselves from osteoporosis are simply wasting their time.
The researchers, led by Professor Ian Reid, reviewed around 23 randomized studies that involved over 4,000 healthy adults with an average age of 59 years and found that taking vitamin D supplements does not improve the bone density in the hip, spine, forearm, or in the body as a whole, though the researchers admitted that their review did not look at other benefits provided by such supplements. The study has been published in the journal The Lancet.
"This systematic review provides very little evidence of an overall benefit of vitamin D supplementation on bone density. Continuing widespread use of vitamin D for osteoporosis prevention in community-dwelling adults without specific risk factors for vitamin D deficiency seems to be inappropriate", the researchers wrote in their report.