A new study shows that the degree of obesity and vitamin D deficiency is inversely proportional. In other words: Every time our BMI increases by 10%, your body's levels of vitamin D decrease by 4.2%.
The reason for this is according to the researchers quite simple. Vitamin D is a fat-soluble vitamin that is stored in the body's fatty tissues. The more fat tissue we form, the more vitamin will be stored in the fatty tissue, which means that there will be proportionately less vitamin to circulate the blood.
In this study, researchers included 21 studies with a total of more than 42,000 people which gives the result good scientific weight. The result was applicable for both men and women, young and old.
The study does not suggest that lack of vitamin D in particular will lead to obesity. On the other hand it emphasizes the importance of obese being aware of getting enough vitamin D.