We all are well aware that Vitamin D is beneficial for strong bones and teeth but recent research has proved that it has a positive role in lowering obesity among women.

For study purposes, seventy-seven volunteers were enrolled in two groups. The first group was given vitamin D (cholecalciferol) while second group was given placebo (lactose), both for 12 weeks.
The measurement of height, weight, waist circumference, and fat mass were recorded both prior and after the scheduled duration of administration of vitamin D.
It was noted that the vitamin D administered group showed marked reduction in body fat; however no change was noticed in waist circumference.
The researchers said,"A modest fat mass reduction of 7% was associated with a significant increase of 25-OHD levels by 103% and a significant decrease of PTH levels by 14%."
The scientists thus concluded that rise in vitamin D possibly leads to reduction in body mass in healthy obese women.
A 12-week double-blind randomized clinical trial of vitamin D3 supplementation on body fat mass in healthy overweight and obese women; Amin Salehpour et al; BMC Nutrition Journal 2012.