Diet and Exercise Flashcards

1
Q

Okinawa Diet

A

HIghetst proportions of cenetarians 34/100,000 vs 5-10/ 100,000 Americans

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2
Q

Ornish studies - Multicenter Lifestyle Intervention Project

A

440 pts with Coronary artery disesase participated in lifestyle change;
- Diet: low fat ≤ 10%, whole foods, plant-based
- Exercise: moderate exercise ≥ 3 hours/week
-Stress management: ≥ 1 hour/week
Group support sessions 2X/week
Baseline, 3-month, and 12-month F/U

Significant improvements
Medical
↓ plasma lipids
↓ blood pressure
↓ body weight
↑ exercise capacity
Psychosocial, ↑ quality of life
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3
Q

Ornish Studies - Multisite Cardiac Lifestyle Intervention Program

A

Multisite Cardiac Lifestyle Intervention Program: Demonstrated similar results to multicenter – 
 Significant decrease in coronary risk factors

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4
Q

Esselstyn Study

A

5-year F/U –> 18 patients were compliant
Mean cholesterol 237 mg/dL decreased to→ 137 mg/dL
Coronary events: None in first 5 years & 49 coronary events in 8 years < study
- 6 patients left study ≤ first 18 months –> Coronary events: 13
11 patients underwent angiography –>No additional stenosis
8 of 11 had disease regression

@12-year F/U—> 17 patients remaining & Mean cholesterol 145 mg/dL

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5
Q

Esselstyn’s Study/ DIET : 1985 - 2000

A

24 patients (1 ♀, 23 ♂) with severe coronary artery disease
began plant-based diet with < 10% fat
- No oils, fish, meat
- No dairy except: Skim milk, Non-fat cheese, Non-fat yogurt
- Maintained cholesterol < 150 mg/dL with Diet & Cholesterol-lowering medication

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6
Q

Ornish Diet: The reversal diet

A
The Reversal Diet
10% fat (mostly polyunsaturated or monounsaturated)
70-75% carbohydrate
15-20% protein
5 mg. cholesterol daily
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7
Q

Typical american diet

A
Typical American Diet:
35-50% fat (mostly saturated)
25-35% carbohydrate
25% protein
400-500 mg. cholesterol daily
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8
Q

“In cholesterol lowering, moderation kills”: Caldwell B. Esselstyn, Jr., MD

A

“The high-fat American diet is responsible for an epidemic of coronary artery disease. A plant-based diet with less than 10% fat will prevent coronary disease from developing, halt the progress of existing disease, and even reverse the disease in many patients. Given proper support and education, motivated patients with a history of coronary disease can follow this diet and prevent future cardiac events.”

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9
Q

High-fat diet (55-65%), low-carbs, & high-protein causes

A
--->  ketosis
Atkins’ diet
Carbohydrate Addict’s Diet
Protein Power
Life Without Bread
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10
Q

Moderate-fat diet (20-30%), balanced nutrient reduction, modrate-to-high carbs, moderate protein

A
USDA Food Guide Pyramid
DASH diet
Weight Watchers
Jenny Craig
Zone Diet
South Beach Diet
Mediterranean Diet
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11
Q

Low-fat diet (11-19%) and Very-low-fat (VLF) (< 10%), high carbs, 
 moderate protein → primarily plant-based

A

Ornish Diet
Eat More, Weigh Less
Pritikin Diet
& esselton’s diet

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12
Q

Diet differences - Chinese vs. American

A

America: 15-16% Calories from protein, 80% animal-based
China: 9-10% calories from protein, 10% animal-based

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13
Q

Vitamin C

A

Aids in making collagen for connective tissues
Aids in wound healing
Protects against free-radical damage
Doesn’t decrease frequency of colds, but can decrease the duration and severity
Reduces risk of many GI cancers

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14
Q

Vitamin D

A

Hormone manufactured by sun exposure of skin
Winter-time supplementation reduces bone loss and improves bone density
Sunscreen users can be Vit D deficient
Evidence that it reduces risk in several cancers

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15
Q

Vitamin E

A

Excellent free-radical scavenger
May reduce risk of: heart disease & prostate cancer
Can interfere with blood thinners

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16
Q

Folate (folic acid)

A

Prevents neural tube defects during pregnancy
Reduces homocysteine levels
Lowers risk of heart disease

17
Q

Calcium

A

Supplementation can help improve bone health

Decreased bone fractures in high-risk groups

18
Q

Free radicals

A

unpaired electrons
Denature bio-molecules: Proteins, Lipids, Nucleic acids
Results in tissue injury

19
Q

Oxidative stress

A

Exogenous sources: Diet, Environmental pollution, Cigarette smoke, Exhaust fumes

Endogenous sources: Mitochondrial respiration & Activation of phagocytes

20
Q

Antioxidants

A

Natural or synthetic compounds that are oxidized very readily, therefore preventing other compounds from being oxidized.

Enzymes: Superoxide dismutase, Catalases, Peroxidases
Vitamins: Beta-carotene, Vitamin E, Vitamin C, Vitamin A

21
Q

Antioxidant diet

A

Low-calorie diets lowers production of cell-damaging free radicals.
Antioxidant-rich foods : Legumes (beans), Vegetables, Whole grains, Fruits
It follows that plant-based foods and diets are richest in antioxidants.

22
Q

Popular Diets

A

Very-low-fat: Ornish, Pritiken, Okinawa

Moderate-to-Low-carbohyrate: Atkins, Carbohydrate Addict’s, Zone, South Beach, Low-calorie, Weight Watchers,
Jenny Craig

23
Q

The Five A’s

A

Assess obesity risk
Ask about readiness to lose weight
Advise in choosing and designing a program
Assist in facilitating the right intervention
Arrange for follow-up

24
Q

Body mass index (BMI)

= weight (kg) / height (m2)

A
< 18.5 underweight
18.5 – 24.9 normal
≥ 25 overweight
≥ 30 obesity (class 1)
≥ 35 obesity (class 2)
≥ 40 extreme obesity (class 3)
25
Q

Weight Loss

A

Caused by negative energy balance
500 kcal/day < total required for stable weight
500 kcal/day deficit – 1 lb loss/week
Successful weight loss
5% loss total body weight maintained for 1 year

26
Q

Metabolic Syndrome

A

Abdominal obesity, waist circumference:
White men ≥ 94 cm (≥ 37 in)
White women ≥ 80 cm (≥ 32 in)

Plus any 2 of the following:
Triglycerides ≥ 150 mg/dL
HDL-C: Men < 40 mg/dL & Women < 50 mg/dL
BP ≥ 130/85 mm Hg
Fasting glucose > 100 mg/dL
27
Q

Metabolic Syndrome Tx

A
ABCDE approach: 
Assessment/aspirin
BP control
Cholesterol management
Diabetes prevention/diet
Intensive lifestyle modification
Exercise

Daily vigorous activity
Pedometer goal > 10,000 steps/d