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Why diet is important
Contributes to array of diseases
Implicated in some cancers
Changing diet improves health
Pros and cons
Resistance to modifying diet
Problem with maintaining change
Recommendations are restrictive, monotonous, expensive, hard to obtain
Stress affects eating
Changes may alter mood/personality
Maintaining change and negative effects of change
Keto diet
Low carbs (glucose) diet so body uses up fat cells
Carbs
Carbohydrates
Simple carbs bad for health (converted to glucose in blood easily)
Complex carbs better (takes more and longer to convert to glucose)
Raises blood sugar levels (type II diabetes)
Simple and complex carbs
Obesity
Excessive accumulation of body fat
Global epidemic
One of the most serious in Canada
Epidemic
Obesity risks
Risk factor for many disorders
One of chief causes of disability
Early mortality
Psychological distress
Can cause:
-diabetes
-CV disease
-hypertension
-stroke
-cancer
Disorders, disability, psychological distress
Obesity in childhood
31% overweight or obese
Genes contribute to risks
Sedentary lifestyle
Early eating habits contribute
Causes
Obesity in older age
1/4 people older than 50
Counseling to adopt healthy lifestyle
Increase exercise
Lifestyle, exercise
Fat located
Abdominally
Excessive central weight
Gut
Factors associated with obesity
1. Number and size of fat cells
2. Childhood: window of vulnerability
3. Style of eating
4. Family history
5. SES, culture
6. Yo-yo diet (taxing on body)
7. Set point theory of weight
7 factors
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