Nutrition

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Chapter 9
Chapter 9
Nutrition
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Chapter 9.1 Notes

• Cells use food for growth and repair.
• Nutrients are the chemicals in food that cells
  need.
• Nutrition is the study of nutrients in food and
  how your body uses them
• 6 Nutrients
• 1. Proteins 4. Minerals
• 2. Fat 5. Carbohydrates
• 3. Vitamins 6. Water

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1. Proteins are used to build and repair body parts.
   Make up bone, muscle, skin. (10)
2. Fat used as a stored energy source. (30) Butter
   and oil.
3. Carbohydrates used as energy source (1st to be
   used) starches and sugars. (50) Need the most
   each day.
4. Vitamins are chemical compounds needed in very
   small amounts for growth and tissue repair.
   Allows cells to use carbo and proteins. (Vitamins
   A, B1, B2(Riboflavin), B3(Niacin), C, D)
5. Minerals needed to help form different cell
   parts. (Iron, Calcium, Magnesium, Iodine, Sodium)
   May cause anemia or muscle twitching if missing.
6. Water human body made of 50-60 water. Cools the
   body, chemical reactions, carry away body
   wastes. 2 liters/day.

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Balanced diet is a diet with the right amount of
each nutrient.
Food Pyramid diagram that represents all the food
groups and how much you should eat.
Recommended Daily Allowance- RDA or DV
Exercise everyday
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Chapter 9.2 Notes

• Calorie is a measure of the energy in food.
• 1 calorie the amount of heat it takes to raise
  the temperature of 1000 grams of water 1 C
• Not all food provides the same number of
  calories. Carbohydrates proteins

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• 15-18 yrs male 3000 cal/day
• 15-18 yrs female 2600 cal/ day
• Taking in too many calories weight gain
• Taking in less calories weight loss

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The heavier a person is the more calories they
burn because they have to do more work.
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2005
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• Nutrition Matters. January 17, 2007.
  http//www.toronto.ca/health/images/nutrition_matt
  ers_500.jpg
• New Food Pyramid. January 17,
  http//pub.etr.org/upimages/newpyramid.gif
• Nutrition Facts. January 18, 2007.
  http//static.howstuffworks.com/gif/calorie-ch.jpg
  
• Calories in these items. January 18, 2007.
  http//static.howstuffworks.com/gif/calorie.gif
• Calorie Chart. January 18, 2007.
  http//www.coloradotennis.com/cta/Images/Calorie2
  0chart.jpg
• Obesity Chart. January 18, 2007.
  http//www.mrc-hnr.cam.ac.uk/images/obesity_trends
  .gif
• US Obesity Chart. January 18, 2007.
  http//www.ubalt.edu/experts/obesity/map.html
• Medical Complications. January 18, 2007.
  http//www.obesityonline.org/slides/slideimgs/talk
  033__s005_f.gif