I really hate CICO being harbored as the solution though. Diet AND EXERCISE are needed. If you do a caloric deficit, your muscles will also atrophy. If you do this multiple times (diet, maintain, diet, maintain), you will continue to have less and less muscle mass and as a result a lower metabolism, which will make it harder and harder to lose fat. So, I still say just eat healthy (whole foods, plenty of fruits and veggies, enough protein) and the calories will take care of themselves. And lift weights.