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notes 4 - Digestive System I Nutrition Nutrients Nutrition...

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Digestive System Nutrition: is the process of ingestion & utilization of the necessary food substances or nutrients 1. Carbohydrates - Energy source - Requirement: at least 100 grams - Some cells depend on a continuous supply of glucose to survive - Brain cells 2. Fiber - Insoluble fiber has a laxative effect & therefore may reduce risk of colon cancer - Soluble fiber may reduce cholesterol in the blood - Too much: reduce vitamins (D), calcium, zinc, iron 3. Proteins -Needed daily supply, which is 2 servings - Good idea to depend on protein from plant origins - Also in meats, dairy products, cereal, bread - Skin, muscle development, hormones; pretty much whole body 4. Lipids - Humans survive w/a wide range of lipid intakes - Some fats contains fat-soluble vitamins - There is evidence that high fat diet increases chances of cancer development 5. Cholesterol - LDL : contributes to formation of plague [Low Density Level] -HDL : protects against the development of clogged arteries [High Density Level]
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  • Spring '08
  • MITCHELLAMELIAV
  • Vitamin, A. Fat-soluble vitamins, Vitamins -Many vitamins, food processing Vitamin, B. Water-soluble vitamins

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