There has been data ("Leptin Resistance: Everything You Need to Know to Unchain the Power of the Leptin Hormone and Regulate Your Appetite (Leptin resistance books, leptin hormone, leptin weight loss)") available for this ISBN from the data sources that books-by-isbn.com uses, but not on the latest request on Fri Dec 27 22:31:05 2019, so the data displayed here has been removed .