He's losing weight in the laziest way possible by eating less instead of walking his fat ass around the block several times a day. It's a proven way to gain all the weight back since maintaining the weight loss requires maintaining a healthy lifestyle. I'm not going to pretend Josh is going to stay within his caloric budget to not gain any more weight once, or if he ever, reaches his "target weight." He has an unhealthy relationship with food that he's yet to confront directly.