Nutrition

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Nutrition
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Introduction

• What is the first thing that comes to mind when
  you hear the word nutrition?
• Does this differ when you hear the word food?
• What about the word diet?

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Food

• Why do you eat what you eat?
• Environment
• Health
• Senses
• Culture / Religion
• Genetics

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Terminology

• Nutrients Any substance in food that the body
  can use to obtain energy, synthesize tissues, or
  regulate functions. (Insel Roth, 2010, Pg 11)
• Essential Nutrients
• Must be obtained by eating food

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Nutrients

• Six classes of nutrients
• Carbohydrates
• Lipids (fats)
• Proteins
• Vitamins
• Minerals
• Water

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Key Terminology

• Estimated Average Requirement (EAR)
• Recommended Dietary Allowance (RDA)
• Adequate Intake (AI)

• Tolerable Upper Intake Levels (UL)
• Daily Value (DV)
• Nutrient Dense
• Energy Dense
• Calorie dense

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Nutrition and Health
(Kline, 2008)
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Cells
(Kline, 2008)
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Energy

• What is one of the main reasons you eat food?
• Energy!
• Only three classes of nutrients supply energy
• How is energy from food measured?
• Kilocalorie vs calorie

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Introducing the Nutrients

• Energy in foods
• Measured in kilocalories (kcal)

Discovering Nutrition, 2010
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Recommended Calorie Intake

• In General
• However, everyone is different
• Gender, age, body size activity level all play
  a role.

Men 2,500 2,800 Women 1,800 2,000 Children 1970 for boys 1740 for girls
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How much energy do you need?

• Resting Metabolic Rate
• Basal Metabolic Rate
• Your body weight in pounds x 10 BMR
• Youll need to factor your activity level
• BMR x 0.30 for moderate activity
• BMR x 0.40 0.60 for very physically active
• Add BMR activity for daily calorie needs

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USDA Food Guides
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History of USDAs Food Guidance
Food for Young Children
1992
1916
1940s
1970s
2005
1950s-1960s
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http//healthvermont.gov/prevent/diabetes/mypyrami
d.gif
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http//www.choosemyplate.gov/
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Nutrient Density
(Kline, 2008)
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(Kline, 2008)
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(Kline, 2008)