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WVSOM - Nutrition
Food Labels and Fad Diets
Question | Answer |
---|---|
Two types of panels | Principal display panel and information panel |
Principal display panel | What the consumer sees first |
Information panel | Information that must be placed together without any intervening material |
What four things must appear on an information panel? | a) net contents of package, b) name and address of manufacturer, packer, or distributor (based on lablel size), c) ingredients list in descending order of predominance (wt), d) nutrition facts |
List some nutrition facts | i) serving size, servings per package, ii) total kcal and kcal from fat (per serving), iii) list of nutrients (fat - total, sat, trans, chol; pro, carb - total, sugar, fiber; vit. A & C; calcium; iron; sodium), iv) % of daily values |
Two things to watch when reading food labels | Punctuation and terms |
Nutrient claims | A claim that characterizes the level of a nutrient in a food directly or by implication; must use FDA approved terminology |
Free, zero, no, negligible | None or trace amounts (< 5 kcal) |
Low | Variable definitions, depending on nutrient (g, mg) |
Reduced / less | 25% less than comparable standard |
FDA health claims report card system | Grade given based on level of confidence in health claim compared to FDA required label disclaimer |
Grade A | Health claim = high (siginificant scientific agreement); label disclaimer = no disclaimer required |
Grade B | Health claim = moderate (evidence is supportive, but not conclusive); label disclaimer = "claim" (although there is scientific evidence supporting this claim, the evidence is not conclusive) |
Grade C | Health claim = low (evidence is limited and not conclusive); label disclaimer = some scientific evidence suggests "claim". However, the FDA has determined that this evidence is limited and not conclusive |
Grade D | Health claim = extremely low (little scientific evidence supporting this claim); label disclaimer = very limited scientific evidence suggests "claim". The FDA concludes that there is little scientific evidence supporting this claim |
Health claims | A claim that implies a relationship between the presence or level of a substance in a food and a disease or health-related condition; must be approved by the FDA (ex: may reduce the risk of osteoporosis) NOTE: this is not adequately enforced! |
Structure / function claims | Describes the effect that a substance has on the structure or function of the body, with no reference to disease; do not need to be approved by the FDA (ex: helps build strong bones) NOTE: this is not adequately enforced! |
3 changes that need to be made to improve labels (according to Center for Science in the Public Interest) | 1. improve nutrition facts panel 2. modernize ingredients label 3. improve regulation of health-related claims |
Atkins diet | Refined carbs are culprits (sugar, refined white flour, HFCS), saturated fats OK, trans fat BAD, NO insulin inducing foods! Phases: induction (20g CHO/day), ongoing weight loss (+ 5g CHO/day), pre-maintenance (+ 10g CHO/day), lifetime maintenance |
Zone diet | Hormone balance is key (insulin:glucagon ratio, anti-inflammatory, 40:30:30 - pro:carb:fat), body cannot burn and store fat at same time |
Atkins diet evidence | Some scientific evidence verifying weight loss and discounting high lipid levels; however, studies were short-term (1 yr or less) |
Zone diet evidence | No scientific evidence |
South beach diet | Good carbs (low glycemic index), good fats (polyunstat, omega-3 and 6), low glycemic foods key |
South beach diet phases | 1: 2 weeks; no sugar, candy, bread, fruit, cereal, grains; lose the insulin resistance 2: whole grains and fruits gradually re-introduced 3: when reach desired weight, 3 servings of grains/day, 3 servings of fruit/day |
South beach diet evidence | No scientific evidence |
Protein power | High protein, low carbs; 30-50% fat, 30-45% protein, 15-35% CHO; 850-1000 kcal/day; reduce carbs, vitamins, minerals, fiber intake |
Consequences / symptoms of protein power | Kidney stress, increase risk for heart disease, fatigue, weakness, irritability |
Promotion of protein power | Book sales and testimonials |
Acai berry diet | SCAM! Claims = antioxidant, anti-inflammatory, weight loss, increased energy, toxin cleansing, cures cancer, stops baldness, cures impotency, minimizes constipation, flushes intestines; no scientific evidence; all berries antioxidants & anti-inflammatory |
Cabbage soup diet / soup diets | 7 day plan (eat only soup); low calorie, high fiber, high water content; weight loss due to decreased caloric intake; variations on diet |
Good housekeeping soup diet | One large batch of soup lasts several day; breakfast and lunch = controlled portion meals; snacks = unlimited soup; dinners = soup; soup contents = broth and vegetables |
Ornish diet | Carbs are good! 70-75% CHO, 15-20% protein, <10% fat; <5mg cholesterol/day; recommends whole grains, fruits, veggies; very little meat, dairy, fat; lowers cholesterol; documented evidence of atherosclerotic regression |
Ornish diet creator | Dr. Dean Ornish, M.D. |
Blood type diet | Blood type determines diet; 1200 kcal; missing food groups O = mostly meats A = mostly fruits B = mostly oats and rice flours AB = tofu, sardines, oats, and rice |
Foundation of all diets | Insulin control |
Sugar busters diet | NO sugar; avoid simple/refined carbs; 800-1200 kcal; reduce carbs, vitamins, mineral, fiber intake; supported by testimonials (evidence based on opinions) |
Sugar busters creators | Corporate CEO and 3 medical doctors |
Blood type diet creator | Peter D'Adamo (naturopathic physician) |
Evidence of protein power | NO |
Risks with low carb:high protein diets | Low CHO decreases serotonin = depression; low insulin = muscle catabolism, decreased protein synthesis; increased kidney stone risk; compromises bone health; increases uric acid; gout; constipation; diarrhea; stomach cramps |