Vit D controversy

There are many controversies about Vitamin D benefits. One of them is whether Vitamin D will prevent bone fractures.

A  meta-analysis of Randomized Controlled Trials of vitamin D supplementation alone (daily or the intermittent dose of 400-30 000 IU), did not find a reduce risk of any fracture.

However, combined supplementation with vitamin D (daily doses of 400-800 IU) and calcium (daily doses of 1000-1200 mg) found a 6% reduced risk of any fracture and a 16% reduced risk of hip fracture. Therefore, taking a combination of Vit D and Calcium supplement is beneficial, unless contraindicated, to prevent bone fracture. Talk to your doctor first before starting or stopping your supplementation. There are multiple diseases ( ex renal disease, diseases of parathyroid glands) when calcium or Vit D might be not beneficial.