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Chapter 7 Nutrition - PowerPoint PPT Presentation


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Chapter 7 Nutrition. Objectives. Understanding the relationship of good food nutrition to achieving a high level of physical fitness. Indentifying the six basic nutrients Understand common dietary problems. Recognizing foods that are a good source of essential nutrients.

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Chapter 7 Nutrition


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objectives
Objectives
  • Understanding the relationship of good food nutrition to achieving a high level of physical fitness.
  • Indentifying the six basic nutrients
  • Understand common dietary problems.
  • Recognizing foods that are a good source of essential nutrients.
  • Understanding minerals.
what is nutrition
What is Nutrition ? ? ?
  • The process by which the body uses food for maintenance of life, growth, normal functioning of every organ and tissue, and the production of energy
slide4
Food
  • Material of plant and animal origin which nourishes & maintains the human body and enables the body to function & grow.
  • Food is composed of nutrients.
  • May contain 6 essential nutrients.
slide5
Food
  • Food provides fuel (energy) in the form of calories.
  • Food also provides the basis for sound healthy skin, teeth, hair, muscle, and bones.
what is a calorie
What Is a Calorie?
  • All foods contain calories
  • Food energy in noted in the form of calories.
  • The number of them depends on the specific nutrients and the amount of food in each.
  • Common measurement used to express potential energy of food. By product of chemical reactions in the body.
  • Calorie - A unit of heat equal to the amount of heat required to raise the temperature of one kilogram of water by one degree at one atmosphere pressure
  • You should eat a variety of high quality foods.
  • No single food groups provides all essential nutrients.
calories per gram
Calories per gram

1 gram of fat = 9 calories

1 gram of protein =4 calories

1 gram of carbohydrates=4 calories.

essential nutrients
Essential Nutrients
  • Carbohydrates
  • Protein
  • Fats
  • Minerals
  • Vitamins
  • Water
6 basic nutrients carbohydrates
6 Basic Nutrients (Carbohydrates)
  • Function – Major source of energy; supplies fiber.
  • Sources – Fruits, vegetables, grains, and cereals
  • Diet Recommendations - 58% +. 48% from complex carbohydrates. 10% from simple sugars
carbohydrates
Carbohydrates
  • Major source of energy which is supplied in the form of sugar.
  • Fruits, veggies, grains, cereals.
  • 58%
  • Supplies Fiber
  • Intestinal house cleaner
  • Lowers risk of colon cancer and lowers cholesterol
  • Water soluble/ insoluble
  • Only found in plants
  • RDA-25-50grams daily
  • Water soluble
  • Found only in plant food.
carbohydrates1
Carbohydrates
  • Simple sugars
  • (Monosaccharides)
  • Fructose-fruit sugar
  • Glucose- corn sugar/ blood sugar.
  • Two sugars-(Disaccharides)
  • Sucrose-Table sugar, cane sugar
  • Lactose-milk sugar
  • Maltose-Malt sugar
  • Multiple Sugars
  • Polysaccharides
  • Starch-Plant sugars
  • Cellulose-Plant fiber(non-digestible)
proteins
Proteins
  • Aids in growth maintenance and tissue repair
  • Found in chicken, fish, meat, and low-fat dairy products: eggs, fish, and beans
  • Recommended percentage is 12%
  • Made of amino acids
  • Body manufacturers some
  • Others are found within foods
  • EAA – Animal sources are complete and plant sources are incomplete
  • 40 – 60 grams needed per day
slide13
Fats
  • Source of stored energy
  • Carries fat soluble vitamins
  • 20 – 30% recommended daily
  • Monounsaturated -Healthy type; liquid for m found in vegetables
  • Polyunsaturated- Increase risk of heart disease
  • Saturated - Solid form; animal source contributes to heart disease
  • P.133
cholesterol
Cholesterol
  • Found in foods that come from animals
  • Excess can build up on linings of arteries and cause heart attack
  • 2 types: HDL and LDL
  • HDL(high density lipoproteins) - the good one-picks up extra cholesterol/helps eliminate.
  • LDL – (low density lipoproteins)the bad one-deposits extra in the lining of arteries.
ways to lower cholesterol
Ways to Lower Cholesterol
  • Reduce saturated fats
  • Avoid fatty meats
  • Avoid foods that contain large amounts of hydrogenated vegetable oils
  • Don’t eat skin from meats
  • Limit foods high in cholesterol
  • See chart on p 133
  • Drink fat free milk
  • Eat unsaturated fats
  • http://www.healthination.com/Videos/Cholesterol
minerals
Minerals
  • Important in activating numerous reactions in the body
  • 2 general body functions - building and regulating food sources
vitamins
Vitamins
  • Function - aid in absorbing and using nutrients
  • Food sources - variety of foods
  • RDA - guideline for how much you should take of each vitamin
  • 2 groups: fat and water soluble
  • Fat soluble-Vit -ADEK
  • Water soluble- B,C
water
Water
  • Function - helps regulate body temperature, digest food, excretion, glandular, secretion, and formation of blood plasma
  • Sources - beverages and liquids in foods
  • 2/3 quarts daily