Nutrition · Module 3 · Carbohydrates and fiber

Carbohydrates Walkthrough

Watch plants build glucose, sugars join and split, starch get snipped into glucose that crosses the gut wall, insulin and glucagon keep blood glucose steady, fiber form a gel, and bacteria turn sugar into tooth-dissolving acid. Each picture links the food, the body and the molecule. Go at your own pace. Nothing here is graded.

Speed

Think of it like this

Quick check

Wrong answers are fine here. Read why, then try again.

Dr. Akash Garg · Nutrition Study Tools · Drawings are simplified and not to scale. For learning only, not personal medical or diet advice. CC BY-NC-SA 4.0
Use the left and right arrow keys to move between steps. Animations run much faster or slower than real digestion so you can see each change. Practise next in the Carbohydrates Lab.