Fad Diets Flashcards

1
Q

“goals” of popular and fad diets

A

1) immediate, dramatic, lasting weight loss
2) improved appearance & enhanced performance
3) health and wellness
4) broad spectrum disease cure and disease prevention
5) treatment for specific diseases

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2
Q

signature characteristics of fad diets

A

*promise easy, dramatic results
*hyped by charismatic individuals, or adopted/promoted by celebrities
*based on un-proven, controversial, or misapplied scientific premises
*associated with/require proprietary products, supplements, special tests
*efficacy claims are anecdotal and/or testimonial; little or no hard evidence
*author has discovered the hitherto unknown (or covered up) EVIL food(s)

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3
Q

categories of fad diets

A
  1. very low carbohydrate (<10%) ketogenic diets
  2. high protein (>20%) low carb or low fat diets
  3. very low fat (<10%) high complex carb diets
  4. clinically proven diets
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4
Q

examples of very low carbohydrate (<10%) ketogenic diets

A

*keto
*atkins
*protein power
*stilman

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5
Q

Atkins & Keto diets - description

A

*ketogenic weight loss diets
*very low carb, very high fat content

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6
Q

Atkins & Keto diets - premise

A

*ketosis suppresses hunger and mobilizes fat for gluconeogenesis

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7
Q

Atkins & Keto diets - pros

A

*very rapid initial weight loss (H2O)
*high fat intake enjoyable (at first)
*urine ketones monitor compliance

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8
Q

Atkins & Keto diets - cons

A

*limited food selection -> boredom
*high saturated fat intake not heart healthy
*very rapid rebound weight gain

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9
Q

examples of high protein (>20%), low carb or low fat diets

A

*Dukan
*South Beach
*zone
*paleo
*sugar busters

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10
Q

paleolithic diet - description

A

*proports to emulate the ancestral hunter-gatherer diet humans consumed before the development of agriculture
*high protein, moderate fat, less carbs

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11
Q

paleolithic diet - premise

A

*mismatch between (static) genetic evolution and appearance of foods from animal husbandry, agriculture, and food processing causes modern diseases

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12
Q

paleolithic diet - pros

A

*proscribes refined sugars, highly processed foods, “junk” foods
*compatible with low carb, gluten-free, and lactose-free diets

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13
Q

paleolithic diet - cons

A

*premise is not supported by recent anthropological and genomic data
*high intake of red meats and fats

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14
Q

south beach diet - descriptions

A

*3 phase weight loss diet
*high protein, low glycemic index carbs

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15
Q

south beach diet - premise

A

*insulin sensitivity is restored by eliminating high glycemic index carbohydrates

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16
Q

south beach diet - pros

A

*rapid weight loss in phase I
*wide range of food selection
*easy to follow (unlimited/limit/avoid)
*recipes contributed by local chefs

17
Q

south beach diet - cons

A

*weight loss slows in phase II and III

18
Q

examples of very-low fat (<10%) high complex carbs diets

A

*ornish
*pritkin

19
Q

ornish diet - description

A

*anti-ASCVD; health promotion
*very low fat, low protein, plant based

20
Q

ornish diet - premise

A

*eliminating diet cholesterol & saturated fat lowers LDL -> reverse ASCVD

21
Q

ornish diet - pros

A

*exercise and stress reduction are an integral part of the program
*high fiber -> satiety -> weight loss

22
Q

ornish diet - cons

A

*requires very strong motivation
*vegetarian menus not for everyone

23
Q

blood type diet - description

A

*diet Rx based on ABO blood type
O: 40% protein, 40% carbs, 40% fats
A: 20% protein, 70% carbs, 10% fats

24
Q

blood type diet - premise

A

*ABO type is a genetic surrogate that identifies archetypical diets
*eating “wrong” foods causes ilness

25
Q

blood type diet - pros

A

*first diet to incorporate genetics
*prescribes personalized diets
*all diets (each blood type) eliminate processed foods

26
Q

blood type diet - cons

A

*ABO evolution postulate is incorrect
*little evidence that ABO genes interact with diet to affect disease susceptibility, health, or metabolism

27
Q

characteristics of good diets

A

*balanced protein / carb / total fat:
-decrease: high glycemic index carbs, saturated fat, and salt
-increase fruits, veggies, grains, and monounsaturated fat
*teach healthy food selection, preparation, and PORTION CONTROL
*provide nutrient information, recipes, menus, peer support
*include lifestyle modification (increase exercise, decrease alcohol, decrease stress
*make limited, cautious claims
*provide evidence of efficacy
*don’t cause rapid weight loss

28
Q

DASH diet - description

A

*designed to lower blood pressure (later: lower LDL and lose weight)
*premise: HTN can be controlled by limiting sodium intake while increasing intake of K+, Ca++, Mg++ rich foods

29
Q

Mediterranean diet - description

A

*traditional cuisine of the countries surrounding the Mediterranean Sea

30
Q

Mediterranean diet - premise

A

*Mediterranean populations have low incidence of many chronic diseases
*following these dietary patterns will confer similar health benefits

31
Q

Mediterranean diet - pros

A

*balanced macronutrient distribution
*emphasis on fish, veggies, monounsaturated fat
*wide variety of food styles / recipes
*does not prohibit any food groups

32
Q

Mediterranean diet - cons

A

*fresh fish can be expensive
*requires planning and increased prep time