Transcript Diet - Marian High School

Managing Your Weight
Calories
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Calories are a unit to measure energy;
measures calories in food and the energy that
your body burns
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How many calories do you need?
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Rate of growth
Body size
Gender
Age
Weight Problems: Risky Business
Body Fat vs. Body Weight
 Overweight - weighing more than 10% over the standard weight for height
 Obese - excess body fat, or adipose tissue
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Excess body fat increase the workload of the body frame, heart and lungs
Hypertension
Diabetes
High Cholesterol
Atherosclerosis
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Sedentary Lifestyle
Poor food habits
Hereditary plays a role, however; the link between generations is unclear
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Underweight - 10% or more below the normal weight
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Has little body fat as an energy reserve
Less nutrients that the body stores
Increase in health problems; harder to fight off infection
Diets and Eating Disorders
Diet - everything you eat and drink
 Fad Diet - approach to weight control
that is popular for a short time
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Ex. Grapefruit or the cabbage soup diets
Limit certain nutrients and food variety
Weight Cycling - losing and regaining
weight; much of the weight lost is water
and not body fat
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Ex. Seesaw dieting or yo-yo dieting
Other Risky Weight Loss Strategies
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Fasting - not replenishing the body’s nutrients
can be dangerous. Without food, the body starts
to use its own muscle tissue as an energy source.
Liquid Protein Diet - high protein, low carb
liquid diets can have serious side effects; consult
doctor before using this as your only form of
weight loss.
Diet Pills - burn, block, or flush the fat;
researchers have yet to find a pill that can do this
safely. May help in suppressing energy, but can
have other serious side effects.
Anorexia Nervosa
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An eating disorder in which the irrational fear of becoming
obese results in severe weight loss from self-induced
starvation
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A psychological disorder with both emotional and physical
consequences
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Relates to individuals self concept and coping abilities
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Characterized by:
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Extremely low caloric intake
Obsession with exercising
Emotional problems
Unnatural interest in food
Unrealistic or distorted sense of body image
Denial of an eating problem
Anorexia Nervosa
Most are in their teens or twenties
 Not generally common among males, but
can be at risk
 Symptoms can include:
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Extreme weight loss
Constipation
Hormonal changes
Heart damage, decreased heart rate
Impaired immune function
Menstrual cycle may cease due to low body fat
Severe cases may cause death
Bulimia
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An eating disorder in which cycles of overeating are
followed by some form of purging or clearing of the
digestive tract
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Bulimics usually follow a restrictive diet, and then binge
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Quickly eats large amounts of food followed by self-induced vomiting
or purging through abuse of laxatives
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Trying to obtain the “perfect figure”
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Often very secretive
Bulimia
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Vomiting and diarrhea can lead to:
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Dehydration
Kidney damage
Irregular heartbeat
Eroding tooth enamel and tooth decay
Damages tissues in the stomach, esophagus,
and mouth
Nutrient deficiencies can occur from laxatives not
allowing digestion or absorption
Laxatives can also damage composition of blood