Nutrition

Definition

Nutrition is the science that studies how the body uses food to sustain life, growth, and health. It involves understanding the intake of nutrients and their impact on bodily functions and well-being.

5 Must Know Facts For Your Next Test

1. Nutrients are divided into macronutrients (carbohydrates, proteins, fats) and micronutrients (vitamins, minerals).
2. Essential nutrients must be obtained through diet as the body cannot produce them.
3. Malnutrition can result from both undernutrition and overnutrition.
4. Water is a crucial nutrient involved in nearly all bodily processes.
5. The Dietary Reference Intakes (DRIs) provide guidelines on the optimal intake of nutrients to prevent deficiencies and maintain health.

Review Questions

• What are the two main categories of nutrients?
• Why are essential nutrients important for the body?
• How does water function as a nutrient in the human body?

Related terms

Macronutrients: Nutrients required in large amounts for energy and growth, including carbohydrates, proteins, and fats.

Micronutrients: Nutrients needed in smaller quantities like vitamins and minerals that are essential for various bodily functions.

Dietary Reference Intakes (DRIs): A set of guidelines for daily intake levels of essential nutrients to prevent deficiencies and promote optimal health.