10. Changes Occur to Nutrients.

Proteins, fats, carbohydrates, vitamins, and minerals are examples of nutrients in food. Heat changes certain nutrients in very important ways. For example, proteins and starches in flour are more digestible once they are heated. This means that baked foods containing flour are often more nutritious than raw foods. Not all the effects of heat on food are positive, however. Heat destroys some nutrients such as vitamin C (ascorbic acid) and thiamin (vitamin B₁).