It's less about calories in - calories out as it is about giving those calories something better to do than turn into fat cells. Exercising breaks down muscle,

It's less about calories in - calories out as it is about giving those calories something better to do than turn into fat cells. Exercising breaks down muscle, you need energy to build it back up. If you exercise too much then you'll get hungrier, it's easy to overeat in this situation if you're not careful. So just keep it to light walks or cardio and prioritize the diet.