Post on 27-Mar-2015
Lesson 2
Do you…
Fad Diets and Eating Disorders
These weight-loss strategies are risky. Not only do they often fail to produce long-term results, but they
can also cause serious health problems.
Eat only a few types of food?
Use diet pills? Follow a liquid diet?
Lesson 2 Lesson Objectives
Describe the risks of fad diets and other dangerous weight-loss strategies.
Describe the causes, symptoms, and treatment of eating disorders.
Provide help to someone with an eating disorder.
Identify the presence of an eating disorder as a situation requiring assistance from professional health services.
In this lesson, you’ll learn to:
Lesson 2
Fad Diets
Risky Weight-Loss Strategies
Fad diets are hard to stick with because they limit food variety.
Some are costly because they require dieters tobuy certain products.
They fail to provide the body with the nutrients it needs for health and growth.
Any weight lost on fad diets is usually regained.
Lesson 2
A person on a liquid diet replaces all of his or her food intake with a special liquid formula. Some problems with liquid diets:
They do not meet the body’s energy needs, as they are very low-calorie diets.
They often leave the dieter feeling fatigued.
Many do not provide the body with fiber and needed nutrients.
Liquid Diets
Risky Weight-Loss Strategies
Lesson 2
Relying on high-protein, low-carbohydrate liquids as the only source of nutrients can cause serious health problems and even death.
Dangers of Liquid Diets
Risky Weight-Loss Strategies
The U.S. Food and Drug Administration (FDA):
• Requires liquid diet products to carry warning labels.
• Recommends that liquid diets be used only under close medical supervision.
Lesson 2
To fast is to abstain from eating.
Fasting for more than short periods deprives your body of needed nutrients and energy.
If people who are fasting avoid liquids, they may become dehydrated.
Fasting may not be advisable for those with diabetes or other health conditions.
Fasting
Risky Weight-Loss Strategies
Lesson 2
Many diet pills work by suppressing appetite. A low-risk pill thatmeets claims of “burning,” “blocking,” or “flushing” fat from
thebody has not yet been developed.
Diet Pills
Risky Weight-Loss Strategies
Drowsiness
Racing Heart
Addiction
Dehydration
Side Effects of
Diet Pills
Lesson 2 Weight Cycling
Weight cycling is common in people who follow fad diets. Weight loss on these types of diets is usually from water, not body fat.
Water weight lost is quickly regained.
Slow and steady weight loss is the best strategy for long-lasting results.
Weight Loss and Weight Gain
Lesson 2 The Risks of Eating Disorders
An eating disorder may be brought on by mental or emotional factors such as:
What Causes Eating Disorders?
Poor body image.
Family pressures.
Social pressures.
Perfectionism.
Genetics.
Lesson 2
Anorexia nervosa is a psychological disorder with emotional and physical consequences.
The disorder relates to an individual’s self-concept and coping abilities.
Outside pressures, high expectations, a need to be accepted, and a need to achieve are characteristics associated with the development of anorexia.
Anorexia Nervosa
The Risks of Eating Disorders
Lesson 2
Medical specialists have found genetics, hormones, and certain brain chemicals to trigger anorexia in some people.
Symptoms of Anorexia Nervosa
The Risks of Eating Disorders
Symptoms:
Extremely low caloric intake
An obsession with exercising
Emotional problems
An unnatural interest in food
A distorted body image
Denial of an eating problem
Lesson 2
Physical consequences of anorexia are related to malnutrition and starvation. It may stop menstruation in women.
Health Consequences of Anorexia Nervosa
The Risks of Eating Disorders
Other consequences:
Loss of bone density
Low body temperature
Low blood pressure
Slowed metabolism
Reduction in organ size
Serious heart problems
Lesson 2
A person with bulimia nervosa
Bulimia Nervosa
The Risks of Eating Disorders
Purges the food from the body
Binges or quickly consumes large amounts of food
Fasts or follows a strict
diet
Lesson 2
The exact cause of bulimia is unknown, but societal pressures, self-esteem issues, and family problems may be factors.
Symptoms:
Distorted body image
Unnatural interest in food
Causes and Symptoms of Bulimia
The Risks of Eating Disorders
Lesson 2
Health Consequences of Bulimia Nervosa
Vomiting destroys tooth enamel and causes tooth decay. It also damages the tissues of the stomach, esophagus, and mouth.
Frequent vomiting and diarrhea can lead to dehydration, kidney damage, and irregular heartbeat.
Frequent use of laxatives can disrupt digestion and absorption and can cause nutrient deficiencies. It can also change the composition of the blood.
The Risks of Eating Disorders
Lesson 2
People with binge eating disorder consume huge amounts of food at one time but do not try to purge.
This disorder may signal the use of food as a coping mechanism for strong emotions or depression.
Binge Eating Disorder
The Risks of Eating Disorders
Lesson 2
Binge eating disorder often results in unhealthful weight gain,
which contributes to health problems such as:
Health Consequences of Binge Eating Disorder
Type 2 diabetes.
Heart disease and stroke.
Gallbladder problems.
High blood pressure.
High cholesterol.
Increased risk of certain types of cancer.
The Risks of Eating Disorders
Lesson 2
People with eating disorders need professional medical and psychological help. They may also benefit from support groups and clinics.
Help for Eating Disorders
The Risks of Eating Disorders
Lesson 2
How You Can Help People with Eating Disorders
The Risks of Eating Disorders
If you believe a friend might be developing an eating disorder, you can:
Discuss the problem with a trusted adult.
Encourage your friend to seek professional help, and be supportive.
Lesson 2
1. Liquid diets
2. Fasts
3. Diet pills
4. Fad diets
Q. _____ are weight-loss plans that
are popular for only a short time.
Quick Review
Choose the appropriate option.
Lesson 2
A. Fad diets are weight-loss plans that are popular for only a short time.
Click Next to attempt another question.
Quick Review - Answer
Lesson 2
Q. Describe the symptoms and treatment of the eating
disorder anorexia nervosa.
Quick Review
Provide a short answer to the question given below.
Click Next to view the answer.
Lesson 2
A. Symptoms of anorexia nervosa include:
Extremely low caloric intake
An obsession with exercising
Emotional problems
An unnatural interest in food
A distorted body image
Denial of an eating problem
Treatment includes a stay at a hospital where the person can receive nutrients to regain weight and strength. It also requires psychological counseling.
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Quick Review - Answer
Lesson 2
Q. What is bulimia nervosa?
Quick Review
Provide a short answer to the question given below.
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Lesson 2
A. Bulimia nervosa is a disorder in which some form of purging or clearing of the digestive tract follows cycles of overeating.
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Quick Review - Answer
Lesson 2
Why do people with eating disorders require assistance from professional health services?
Quick Review
Provide a short answer to the question given below.
Lesson 2 Risky Weight-Loss Strategies
Fad diets are hard to stick with because they limit food variety.
Some are costly because they require dieters tobuy certain products.
They fail to provide the body with the nutrients it needs for health and growth.
Any weight lost on fad diets is usually regained.
Fad Diets
Fad diets are weight-loss plans that are popular for only a short time.
Fad diets are weight-loss plans that are popular for only a short time.
Lesson 2
Weight cycling is common in people who follow fad diets. Weight loss on these types of diets is usually from water, not body fat.
Water weight lost is quickly regained.
Slow and steady weight loss is the best strategy for long-lasting results.
Weight Cycling
Weight Loss and Weight Gain
The repeated pattern of loss and regain of body weight is called weight cycling.
The repeated pattern of loss and regain of body weight is called weight cycling.
Lesson 2
An eating disorder may be brought on by mental or emotional factors such as:
Poor body image.
Family pressures.
Social pressures.
Perfectionism.
Genetics.
The Risks of Eating Disorders
What Causes Eating Disorders?
An eating disorder is an extreme, harmful eating behavior that can cause serious illness or even death.
An eating disorder is an extreme, harmful eating behavior that can cause serious illness or even death.
Lesson 2
Anorexia nervosa is a psychological disorder with emotional and physical consequences.
The disorder relates to an individual’s self-concept and coping abilities.
Outside pressures, high expectations, a need to be accepted, and a need to achieve are characteristics associated with the development of anorexia.
Anorexia Nervosa
The Risks of Eating Disorders
Anorexia nervosa is a disorder in which the irrational fear of becoming obese results in severe weight loss from self-imposed starvation.
Anorexia nervosa is a disorder in which the irrational fear of becoming obese results in severe weight loss from self-imposed starvation.
Lesson 2
A person with bulimia nervosa
Binges or quickly consumes large amounts of food
Fasts or follows a strict
diet
Bulimia nervosa is a disorder in which some form of purging or clearing of the digestive tract follows cycles of overeating.
Bulimia nervosa is a disorder in which some form of purging or clearing of the digestive tract follows cycles of overeating.
Purges the food from the body
Bulimia Nervosa
The Risks of Eating Disorders
Lesson 2
People with binge eating disorder consume huge amounts of food at one time but do not try to purge. This disorder may signal the use of food as a coping mechanism for strong emotions or depression.
Binge Eating Disorder
The Risks of Eating Disorders
Binge eating disorder is a disorder characterized bycompulsive overeating.
Binge eating disorder is a disorder characterized bycompulsive overeating.
Lesson 2
A. Correct! Fad diets are weight-loss plans that are popular for only a short time.
Click Next to attempt another question.
Quick Review - Answer
Lesson 2
You have answered the question incorrectly. Go back to tryagain, or click Next to view the correct answer.
Quick Review - Answer