Download - Lesson2 carbs proteinsfats
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Carbs, Proteins, & Fats
Chap5
Lesson2
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Carbohydrates
• Starches and sugars found in food
• “the bodies preferred source of energy”
• Two types of carbs:– Simple – Complex
• 55% to 65% of daily calories should be carbs
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Simple Carbs
• Table sugar (white sugar)
• Occur naturally in Fruit, Vegetables and milk– Fruit = Fructose – Milk = Lactose – Grains = maltose
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Simple carbs
• Positives??
• Negatives??
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Complex Carbs
• Whole Grains– Sub rolls we use for lunches @ SJCI
• Break down slowly because of their chemical make up
• Rice, grains, nuts, potatoes
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Role of Carbs
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CARB
Glucose
(energy)
Glycogen
(liver & muscles)
FAT
Glucose
(energy)
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Fiber
• Indigestible & not a source of energy
• Helps food to digest
• Can help prevent: Constipation and other intestinal problems
• Vegetables (stringy), Fruits (skin), Whole grains, Bran Cereal, Rye Bread.
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Protein
• Help build and maintain body tissue.– Muscle, bone, connective tissue, teeth, blood
• Amino Acids– Building blocks of proteins– Essential (must get in your diet)– Non-essential
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Complete Proteins
• Contain all essential amino acids– Fish – Meat – Poultry– Eggs– Cheese– Yogurt– Milk
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Incomplete Protein
• Foods that lack essential amino acids– Nuts– Whole grains
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Role of Proteins
• Build new tissue = infants
• Repair damaged tissue– Muscle building
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FATS
• Lipids
• 9 calories per Gram
• Saturated BAD
• Unsaturated GOOD
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Saturated
• Solid at room temperature – Butter– Fats in food
• Many health risks– Obesity– Heart Disease
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Unsaturated
• Liquid at room temperature – Olive oil– Canola oil– Vegetable oil
• Hydrogenation – adding Hydrogen atoms– Make it more saturated– Margarine is vegetable oil only Hydrogenated
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Cholesterol
• LDL – bad cholesterol – Forms plaque on the artery walls– Slows blood flow
• HDL – Good Cholesterol