HES 2823 1st Edition Lecture 5 Outline of Last Lecture I. Blood Glucose Regulation (continued)A. Blood Glucose TestB. Unhealthy RegulationC. Glycemic IndexOutline of Current Lecture I. Blood Glucose Regulation (continued)A. Glycemic Index (continued)1. Before Activity2. During Activity3. After ActivityII. SucroseA. Myths and Truths about Sucrose1. Obesity2. Diabetes3. Hyperactivity among Children4. Dental Caries, or Tooth Decay5. Nutrient DensityCurrent LectureI. Blood Glucose Regulation (continued)A. Glycemic Index (GI) (continued)1. Before activity, consume low GI foods2. During activity, consume high GI foods, such as maltodextrose containing substances3. After activity, consume high GI foods, such as carbohydrate drinks and maltodextrose, preferably within two hours of training to restore glycogen levelsII. Sucrose: “table sugar”; disaccharide made of glucose and fructoseA. Myths and Truths about Sucrose1. Obesity: too much stored body fata. Does sucrose contain calories? Yes; 4 calories/gram.b. If you over consume sucrose, can you store those calories as fat? Yes.c. Compare sucrose to starchThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.i. Both contain 4 calories/gramii. Both ultimately convert to glucose monomersiii. Both are able to be stored as fatd. Maybe sucrose leads to obesityi. Do people like sugar or fat more?ii. A study mixing varying ratios of dairy fat and sucrose determined thisiii. Most popular taste: 50% fat and 50% sugar- Examples of such ratios include whipped cream, oreo cream, twinkie cream filling, milk chocolate- Humans love sweet fat- Fat is 9 calories/gram- The common combination of fat and sugar in foods causes obesity to become more prevalent2. Diabetesa. Sucrose does not cause diabetesb. Nor does sucrose wear out the pancreas3. Hyperactivity Among Childrena. Based on surrounding circumstances of consumption that cause excitementb. Sucrose intake has no relation to behavior4. Dental Caries, or Tooth Decaya. Carbohydrates (CHOs) enter the mouth, and bacteria ferments (metabolizes) them, producing acids that attack and dissolve toothenamel and causing dental cariesb. Truthful statementi. If CHOs remain in the mouth long enough for fermentationto begin, it becomes more likelyii. The form (stickiness) and frequency of consumption can make tooth decay more common5. Nutrient Density (ND)a. Calories are measures of energyb. Percentage of the Dietary Reference Intake (DRI) for a nutrient that is provided by a food divided by, or compared to, the percentage of daily caloric intakei. The DRI is basically the daily dietary recommended intakeii. Example- ND for vitamin C in orange juice- 90 mg of vitamin C present- 100 calories present- RDA: 90 mg- RDA: 2000 calories- ND = 90 mg eaten/90 mg recommended x 100 = 100%- ND = 100 calories eaten/2000 calories recommended x 100 = 5%- 100%/5% = 20 (no units)iii. Foods with a nutrient density greater than 1 are recommendedc. Two Types of DRIi. Recommended Dietary Allowance (RDA)- Used when much data is availableii. Adequate Intake (AI)- Used when less data is
View Full Document
Unlocking...