Losing more than pounds a week is unsafe. I have safely guided my patients through a poundaday weight loss through low calorie diets. It works and it is safe and was how we were genetically designed to use fat. I sometimes think the people who use this first myth are justifying people staying on their diets or regimens longer. It sells gym memberships and sells monthly weight loss programs that cost dollars a month. If its normal to just lose pound a week, you can keep someone who needs to lose pounds on that diet for weeks That's a good amount of cash If you look to the Mayo Clinic website there are multiple articles explaining against losing more than pounds per week.