CK-12 Foundation
Ck 12: Biology: Food and Nutrients
[Free Registration/Login may be required to access all resource tools.] Discusses classes of nutrients and their functions in the human body.
US Department of Agriculture
Us Dept. Of Agriculture (Usda): Nutrient Data Library
The USDA provides this excellent reference for discovering nutrients in specific foods. Enter up to five keywords, i.e. pretzels, soft, unsalted, and the nutrient data library will present the product's nutritional information.
CK-12 Foundation
Ck 12: Life Science: Types of Nutrients
[Free Registration/Login may be required to access all resource tools.] Carbohydrates, proteins, and lipids contain energy. When your body digests food, it breaks down the molecules of these nutrients. This releases the energy so your...