Definition of «to need the calories»

The phrase "to need the calories" means that your body requires the energy provided by consuming food.

I think that had more to do with my body needing calories for milk production. (kaboutjie.com)
Your body does indeed need a calorie deficit to lose fat. (philmaffetone.com)
Unless you're doing some hard - core cardio, you don't need the calories from a sports drink. (fitwatch.com)
(see all sentences)