I'm not stupid enough to think I'll lose weight in these shoes (although they're the heaviest tennis shoes I've ever worn). However, these are the best running shoes I have ever worn. I'm retired and have a part-time job that requires me to be on my feet for four hours at a time. I've always had foot pain. I've tried different brands, orthotics, Dr. Scholl, wedges - did not help. All of this changed the world. I buy more!