As I mentioned in my previous blog about the difficulties of losing and keeping off weight, leptin plays a significant role in weight loss and maintenance and is secreted by our fat cells. For decades, scientists have known that leptin plays a role in weight loss, but were not certain about the exact role. Over time there have been countless studies where leptin injections were given to subjects to aid weight loss. But there are still many questions that must be answered about leptin and weight loss such as are leptin injections a practical solution to help people lose or keep off weight? Can they help obese people lose weight? Are they safe? Can they reverse the slowed metabolism caused by weight loss? I go over these questions and much more in this week’s blog!