Calories in – Calories out = Weight Management. An elite runner needs to pay as much attention to their caloric intake as the runner or walker trying to lose weight. While Weight Management and Nutrition can be very complex subjects, if you understand the whole concept of “Calories In – Calories Out = Weight Management”, you’ve jumped the first hurdle.

Calories in – Calories out = Weight Management. An elite runner needs to pay as much attention to their caloric intake as the runner or walker trying to lose weight. While Weight Management and Nutrition can be very complex subjects, if you understand the whole concept of “Calories In – Calories Out = Weight Management”, you’ve jumped the first hurdle.