1. How does the typical U.S. diet compare to recommendations for a healthy diet? 2. What does the science of nutrition study? 3. What is an essential nutrient? 4. List six classes of nutrients and indicate which provide energy. 5. List three functions provided by nutrients. 6. List three ways in which what you eat today can affect your health. 7. What is malnutrition? 8. List three factors other than biological need that influence what we eat.

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Nutrition and diet

We are involved in several daily activities. These actions need a significant quantity of energy. The food we eat provides this energy. Food is necessary for development, repair, and other living activities since it supplies energy. All of these are part of the living practice known as nutrition. Nutrition is the study of nutrients in food, how the body uses them, and the relationship between diet, health, and disease. Nutritionists employ concepts from molecular biology, biochemistry, and genetics to understand how nutrients affect the human body. Nutrition also looks at how people can use their diet to reduce their risk of disease, as well as what happens when they ingest too much or too little of a nutrient and how allergies emerge.