Carbohydrates

Your gastrointestinal tract on its own cannot complete the processes of digestion and absorption of nutrients obtained from foods and beverages. Learn about several internal accessory organs which help complete the process.

Digestion occurs in your gastrointestinal tract and is the process by which nutrients contained in the food you consume are separated and absorbed into your body.

What does "working in the fat burning zone mean"? In particular, what does it mean for you and your physical activity or exercise plan?

Digestion begins in your mouth where the mechanical action of your teeth, tongue, and jaw begins to break down food that will eventually be absorbed as nutrients.

The small intestine is a key player in the process of digestion and absorption as it is the major site of digestion and absorption of nutrients.