1. Carbohydrates

2. Fats

However, you wouldn’t want too much fat. Too much fat makes you….fat. LOL.

3. Proteins

4. Vitamin C and D (only) —they’re making it sound like all other vitamins aren’t important XD.

IGCSE Biology Note on B4: Enzymes and Nutrition, created by ShreyaDas on 04/06/2014.