nutrition - NUTRITION You Are What You Eat? The old saying...

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NUTRITION
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You Are What You Eat?
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The old saying “you are what you eat” really does have some merit. Of course …maybe not in the literal sense but if we let us ponder on this thought through out this lecture…. .
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But I Always Wanted To Be a Burger!!
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What Makes NUTRITION Optimal Today ? 1. FROM A GREAT NUTRITIOUS DIET??? 2. What Factors HURT Our DIET? 3. What Can Is Optimal In a NUTRITIOUS DIET? 4. What About Fad Diets? Why Not?
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The Food Pyramid: What is a “serving”? Carbohydrate (6-11) Vegetable (3-5) Fruit (2-4) Dairy (2-3) Protein (2-3) Fats/oil/sweets Sparingly
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OPTIMALLY AND IDEALLY ……IT SHOULD CONTAIN: 1. THINGS NEEDED TO MAINTAIN AND ENHANCE THE BODY and 2. BE VOID OF THE NEGATIVE ( THINGS THAT WILL HARM THE What Constitutes A Healthful Diet TODAY?
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In Our Diet We Must Have: MACRONUTRIENTS: Able to Provide Energy 1. Carbohydrates 2. Proteins 3. Fats •. MICRONUTRIENTS: You Need Very Small Quantities 4. Vitamins 5. Minerals •. Neither Macro or Micro… But A NURIENT WE NEED 6. Water (about 8 cups a day)
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A little about Macronutrients : Carbohydrates Short-term energy. Carbohydrates power all basic cell function. Lipids Long-term energy storage. Cell membrane structure and function. Proteins Proteins do the “work” that the cell
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Carbohydrates Its main function: Short-term energy storage. Carbohydrates include all sugars. Glucose, fructose, sucrose, maltose. Glycogen (storage CHO in your body) Cellulose (structural CHO) Starch (storage CHO in plants) Fleshy fruits, vegetables, grains .
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Carbohydrates…. Empirical formula [CH 2 O] Monosaccharides
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Bonded Monosaccharides = …. Disaccharides
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Starch Storage of glucose by plants
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DIGESTION OF CARBOHYDRATES (STARCH )
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Glucose as a major source of energy for metabol ism
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A Whole-wheat Pretzel; A Complex Carbohydrate
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The Ideal Carbohydrate: Complex and Unrefined (Whole Grain) Complex Carbohydrate : This is a carbohydrate consisting of long chains (up to hundreds of sugar units) . It takes much longer to digest than a short chain. Ultimately ALL carbs are digested to glucose and released into the bloodstream. Once this occurs the pancreas releases the hormone insulin , which allows cells to take up glucose and use it for energy. The liver and muscle also take up glucose to provide carbohydrate storage in the form of glycogen . The BEST Carbs are HIGH fiber ones. Whole grains contain the inner layer of the germ a middle layer of the endosperm, and an outer layer of bran….much more fiber than processed refined grains. We can’t digest these layers of “cellulose” as we do not
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Sources of Complex Carbs Whole Grain Cereals Brown Rice Beans (Any Kind) Peas Corn Whole Grain Breads Vegetables (most)
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Glycemic Index Glycemic index refers to the potential of foods to raise blood glucose levels. Foods with a high GI cause a cause a
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This note was uploaded on 12/08/2011 for the course HES 1 taught by Professor Dianeolin during the Fall '11 term at Riverside Community College.

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nutrition - NUTRITION You Are What You Eat? The old saying...

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