Chapter 37 - Nutrition

Major Categories of Nutrients

1. carbohydrates
   • source of energy
   • converted to glucose
   • whole foods provide complex carbohydrates  
2. lipids
   • source of energy
   • excess carbohydrates and proteins are stored as fat
   • essential fatty acids
3. proteins
   • mostly broken down for the amino acids
   • essential amino acids
4. vitamins
   • organic molecules
   • have specific metabolic roles
5. minerals
   • elements and inorganic molecules
   • have specific metabolic roles
   • body cannot make these, so you must get them from your diet

    

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   © Carol L. Wymer, 2003

Food pyramid

• recommendations for a well-balanced diet
• see Figure 37.14

© Carol L. Wymer, 2003