how energy works. there are more overweight people in this world than hungry people. individuals...
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Weight Management
How energy works
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There are more overweight people in this
world than hungry people. Individuals who are obese have a 10% - 50%
increased risk of death from all causes, compared with healthy weight individuals.
97 million adults are in the “obese” category. This is 31.4% of the entire adult population.
10 million kids (under 12) are in the “obese” category. This is 17.5% of the population under age 12.
Statistics
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This generation of children will be the first
generation to actually have a shorter life expectancy than their parents because of obesity.
Obesity is now the LEADING cause of preventable death in the USA
1980: 24% of all Americans are found to be overweight.
2009: 66% of all Americans are found to be overweight.
Statistics
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Our nation is in
TROUBLE!! We eat too much of the wrong foods & don’t
burn off enough of those calories each day.
The bottom line….
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Calorie- a unit of energy Empty calorie- a calorie with little or no nutrients Metabolism- the rate at which your body uses
energy, or burns calories
Your body is like a furnace with food being the fuel you burn in it.
How energy works
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The more calories in a food item the more energy it provides.
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Calorie intake- calories we consume and bring
in to our bodies Calorie expenditure- calories we use and burn
throughout the day
Intake vs. Expenditure
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1. Basal Metabolic Rate (metabolism): The number of
calories you burn even if you slept all day. Some factors that affect this are: age, size, sex, and health. (60-70 % of calories burned)
2. Digesting, absorbing, transporting and storing the food you consume also takes calories. (10 % of calories burned)
3. Activity: Physical activity and exercise — such as playing tennis, walking to the store, chasing after the dog and any other movement — (account for the rest of the calories your body burns up each day).
Three ways your body burns calories
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Main way body burns calories
It’s quite genetic! Can you boost your metabolism? YES!!! How?
Aerobic exercise Strength training
Why exercise? Muscle cells burn/use more energy than fat
cells.
Metabolism
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How to maintain body weight
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How do we gain weight, how do we
lose weight?
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How to lose weight
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To maintain weight: calorie intake is the same
as calorie expenditure To lose weight: calorie intake is LESS than
calorie expenditure (You are burning more calories than you are eating)
To gain weight: calorie intake is MORE than calorie expenditure (You are eating more calories than you are burning)
Managing weight
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Gend
erAge Sedentary Moderately
ActiveActive
Female
9-13 1,600cal 1,600-2,000cal
1,800-2,200cal
Female
14-18
1,800cal 2,000cal 2,400cal
Male 9-13 1,800cal 1,800-2,200cal
2,000-2,600cal
Male 14-18
2,200cal 2,400-2,800cal
2,800-3,200cal
How many calories should I consume a
day?
• Sedentary-light physical activity associated with daily life
• Moderately Active-equal to walking 1.5-3 miles per day
• Active-equal to walking more than 3 miles per day
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One pound of fat = 3,500 calories.
If someone eats an excess of 500 calories a day for a week, how much weight will they gain that week?
What is a healthy amount of weight (in a week) to gain or lose?
Is it more important to diet or to learn how to live a healthy lifestyle?
Managing Weight
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