This document provides an overview of key concepts in nutrition including: - Nutrition involves the science of foods and the substances they contain, which provide energy and nutrients that the body uses for maintenance, growth, and repair. - An individual's diet, food choices, and nutrition intake can impact their risk for chronic diseases, depending on factors like personal preferences, traditions, and availability of foods. - Macronutrients and micronutrients are essential nutrients that the body needs, and nutrition recommendations provide guidance on adequate intake of calories and nutrients.

1. An Overview of Nutrition BIOL310-Nutrition

14. Energy Density