Article: http://www.sciencenews.org/view/generic/id/348082/description/Link_between_obesity_and_vitamin_D_clarified
A recent study shows that obesity can lead to Vitamin D deficiencies, but having a deficiency of Vitamin D does not necessarily lead to obesity. The study also found that increasing Vitamin D intake will not reverse obesity. Researchers checked their findings against multiple databases of people and got similar results each time. The study did not show why being obese increases vitamin D deficiency. Some scientists think that vitamin D gets sequestered in fatty tissues, preventing it from reaching the bloodstream. We need vitamin D to have a healthy immune system to fight diseases. It's too bad that eating more vitamin D doesn't help reverse the harmful effects of obesity!
NOS themes:
Collaboration is part of this article because the researchers used the genetic profiles of more than 42,000 people and then checked their results with another database of people.
Evidence is part of this article because the researchers used their evidence of the genetic variants associated with being overweight to support their conclusion that obesity can lead to vitamin D deficiencies, but having a deficiency of vitamin D does not lead to obesity.
The importance of repeatability is in this article because the researchers explain how they conducted their study.
Katherine Gao Hour 1
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