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Calories A calorie is a measure of how much energy a food provides. Different types of foods have different caloric values: – 1 gm of fat provides 9 calories – 1 gm of carbohydrate (CHO) provides about 4 calories – 1 gm of protein provides 4 calories if used for energy – 1 gm of alcohol provides 7 calories Serving Size 1 serving = – 15 grams of Carbohydrate – 7 grams of Protein – 5 grams of Fat 1 Carbohydrate Serving Food Amount Food Group Bread 1 slice Starch Cereal (cooked) ½cup Starch Cereal (unsweet, dry) ¾cup Starch Pasta 1/3 cup Starch Rice (white or brown) 1/3 cup Starch Baked Beans 1/3 cup Starch Corn ½cup Starch Mashed potato ½cup Starch Banana 4 oz (1/2) Fruit Apple/Orange juice ½cup Fruit Milk (Skim, 1, 2, 4%, Soy) 1 cup Milk Sugar 1 tbsp Sugar 1 1 Protein Serving Food Amount Poultry, beef, pork, lamb, veal, fish, 1 oz. (about 1 slice of packaged shellfish meat) Cottage cheese ¼cup Cheese 1 oz. (1 slice) Egg #1 Egg whites #2 Egg substitute ¼cup Tofu ½cup (4 oz) 1 Fat Serving Food Amount Type of fat Avocado 2 Tbsp (1oz) MUFA Canola, Olive, Peanut oil 1 tsp MUFA Olives 10 large MUFA Almonds, cashews #6 MUFA Margarine (stick/tub) 1 tsp PUFA Mayonnaise 1 tsp PUFA Corn, Safflower oil 1 tsp PUFA Salad dressing 1 Tbsp PUFA Bacon 1 slice Saturated fat Half and half 2 Tbsp Saturated fat Cream Cheese 1 Tbsp Saturated fat Sour Cream 2 Tbsp Saturated fat What Are Expected Outcomes from MNT on Glycemic Control? ~2% decrease in A1C in newly diagnosed type 2 diabetes ~1% decrease in A1C with an average 4-yr duration of type 2 diabetes ~1% decrease in A1C in newly diagnosed type 1 diabetes or by adjusting insulin dose to carbohydrate intake 50-100 mg/dl decrease in FPG Outcomes will be known by 6 weeks to 3 months. UKPDS. Metabolism 1990 Franz et al. J Am Diet Assoc 1995 Kulkarni et al. J Am Diet Assoc 1998 DAFNE Study Group. BMJ 2002 Pastors et al. Diabetes Care 2002 2 What Are Expected Outcomes from Maximal MNT on Lipids? MNT reduces LDL cholesterol by 15– 25 mg/dl (12-16% decrease) Evaluate outcomes in 6 wks, if goals not met intensify MNT and evaluate again in 6 wks If LDL goal is not achieved by 3 months, consider adding drug therapy American Heart Association task force on risk reduction. Circulation 95:1683, 1997 NCEP Adult Treatment Panel III. JAMA 285:2486, 2001 What Are Expected Outcomes from MNT on Blood Pressure? Dietary intake of sodium: 2400 mg –In hypertensive pts: 5 mm Hg decrease in systolic BP and 2 mm Hg decrease –In normotensive patients: 3 mm Hg decrease in systolic BP and 1 mm Hg diastolic Modest weight loss (as little as 1.8 kg) associated with 22 to 26% risk reduction in hypertension Measure BP at every medical visit Cutler et al. Am J Clin Nutr 65(suppl 1):643S, 1997; Staessen et al. J Hyperten 7 (Suppl):S19, 1989; Moore et al. Arch Intern Med 165:1298, 2005. Effectiveness: Lifestyle Modifications and Hypertension Modification Approximate SBP Reduction Weight reduction 5–10 mmHg/10 kg weight loss DASH eating plan 8–14 mmHg Sodium reduction 2–8 mmHg (2400 mg) Physical activity (30 4–9 mmHg min/day) Moderate alcohol (2 2–4 mmHg drinks, men; 1 drink, women) JNC 7, 2003 3 Prioritizing Nutrition Recommendations for Type 2 Diabetes “Diet” doesn’t fail—the beta cells of the pancreas fail Modest amounts of weight loss (and physical activity) can prevent or delay type 2 diabetes For persons with type 2 diabetes, focus is on nutrition strategies for normalization of blood glucose levels, lipids and blood pressure – Start with glucose control as effects of lifestyle changes on glycemia are seen immediately; it takes longer for lifestyle to impact on lipids and blood pressure so these issues can be addressed in follow-up session – Changes in HbA1c will be known by 6 weeks to 3 months Carbohydrate counting is used to provide flexibility in food choices What About Carbohydrate? Foods containing carbohydrate from whole grains, fruits, vegetables, and low-fat milk are important components and should be included in a healthy diet. (Level of evidence: A) Both the amount (grams) of carbohydrate as well as they type of carbohydrate in a food influence BG levels. – Monitoring total grams of carbohydrate is the key strategy for achieving glycemic control. (Level of evidence: A) – The use of low glycemic index/load may be helpful as adjunct for selected individuals. (Level of evidence: B) What About Sugars? Because sucrose does not increase glycemia to a greater extent than isocaloric amounts of starch, sucrose and sucrose-containing foods do not need to be restricted by people with diabetes, however, they should be substituted for other CHO sources or if added covered with insulin or other glucose lowering medication. (Level of evidence: A) 4
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