23.1: Nutrition Last updated Jun 23, 2019 Save as PDF 23: Nutrition and Metabolism 23.1A: Digestive Systems Page ID8082 ( \newcommand{\kernel}{\mathrm{null}\,}\) Topic hierarchy23.1A: Digestive Systems23.1B: Carbohydrates: Sources, Uses in the Body, and Dietary Requirements23.1C: Lipids: Sources, Uses in the Body, and Dietary Requirements23.1D: Proteins: Sources, Uses in the Body, and Dietary Requirements23.1E: Food Requirements and Essential Nutrients