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Chapter 1. General Principles

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1 Chapter 1. General Principles

2 Energy Units calorie - basic unit of heat kilocalorie calories Calorie - same as kilocalorie

3 Function of Food Growth and development Energy
Carbohydrates Fats Protein Regulation of metabolism Vitamins Minerals Proteins

4 Nutrients Caloric Nutrients Non-Caloric Nutrients
Carbohydrates: 4 kilocalories/gram Fats: 9 kilocalories/gram Proteins: 4 kilocalories/gram (Alcohol: 7 kilocalories/gram) Non-Caloric Nutrients Vitamins Minerals Water

5 Essential Nutrients Required for normal growth, health, survival.
Not synthesized in the body at levels required for normal growth, health, survival. Must be consumed in diet.

6 Nutrient Requirement Standards
Dietary Reference Intake (DRI) Estimated Average Requirement (EAR) Recommended Dietary Allowance (RDA) EAR ± 2 SD Adequate Intake (AI) Tolerable Upper Intake (UL)

7 Factors Affecting Nutrient Standards
Country Gender\ lactation Age

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9 Food Label with Daily Values.
1) Better by Design How to recognize the new food labels. 2) Size Up the Situation All serving sizes are created equal. 5) Trust Adjectives Descriptions have legal definitions. • GOOD SOURCE OF FIBER • LOWFAT 4) Rate It Right Scan the % Daily Values. 6) Read Health Claims with Confidence The nutrient link to disease prevention. Many factors affect cancer risk. Eating a diet low in fat and high in fiber may lower risk of this disease. 3) Look Before You Leap Use the Daily Values.

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