Tweet  Next month, January 2012, a prestigious medical journal will publish a study concluding low vitamin D levels are significantly more common in obese children and that these low levels increases their risk for type 2 diabetes.   This study will be published in The Endocrine Society’s Journal of Clinical Endocrinology & Metabolism (JCEM).   Previous research has shown that low vitamin D levels are associated with cardiovascular disease and type 2 diabetes in adults.  That children, especially obese children, are affected should not be a surprise.   “Although our study cannot prove causation, it does suggest that low vitamin D levels may play a role in the development of.