What percentage of the adult population in the US is obese?
35%
How much does obesity cost the US a year?
147 billion
What are the components of energy expenditure?
Basal Metabolism
Thermic effect of Food
Physical Activity
Dietary intake
What is BMI?
Body Mass Index
BMI Classifications?
<18.5 Underweight 18.5 to 24.9 Normal Weight 25 to 29.9 Overweight 30 to 34.9 Obese class 1 35 – 39.9 Obese class 2 >40 Extreme obesity (morbid obesity/ obesity class 3)
Apple Shape equals what?
central obesity
Pear Shape equals what?
lower obesity
What is central obesity?
excessive abdominal fat around the stomach and abdomen has built up to the extent that it is likely to have a negative impact on health
What is visceral fat?
(intraperitoneal, associated with organs)
More unhealthy fat
What is Subcutaneous fat?
under the skin
>80% of total body fat
Is there a best dietary approach to weight loss?
no, tailored to each person as everyone ins different
What do people who lose weight successfully do?
Some lose weight quick, overs up to as long as 14 years
45% started on their own, 55% with some program
98% of participants say they modified their food intake in some way to lose weight
94% increased their physical activity – usually walking
Most report maintaining a low calorie diet and high levels of physical activity
Why is obesity a health problem?
energy balance, energy in = energy out
What are the causes of obesity?
social, behavioral, cultural, physiological, metabolic, genetic factors
