Body Parts Guide: Gym Training, Functions & Knee Care

Coordinating which body parts to work together in the gym optimizes fitness. Learn how to manage knee injuries, tooth enamel, and facial skin changes.

3d render illustration of human digestive system

What Part of the Body Absorbs Calories?

The process by which dietary calories are absorbed is called metabolism. Metabolism starts with digestion. Digestion begins in the mouth where food is combined with saliva during chewing and carbohydrates begin to break down into simple sugars.

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