Concentrations of Chromium, Selenium, and Copper in the Hair of Visceral-Obese Adults Are Associated with Insulin Resistance May 2014 in “ The Journal of Alternative and Complementary Medicine ” Hana Kim, Sang-Wook Song We don't know much about this study yet. We're maintaining the world's largest resposity of hair loss research. You can help out the community by sending a PDF of this study here . Not sure how to get a study's PDF? You can email the authors of the study. View this study on liebertpub.com →