> At the end of the day, it's all about calories. No it's not. Calories is just a unit of energy. And there are good energy sources, and bad ones as well. It's

> At the end of the day, it's all about calories. No it's not. Calories is just a unit of energy. And there are good energy sources, and bad ones as well. It's not just one single factor that rules everything. Quality and variety of food matters a lot.