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The Mediterranean diet provides about 30 to 35 percent of calories from fat.

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Why does eating a high-fiber diet lower a person's risk for heart disease?


A) Food travels faster through the digestive tract, allowing less time for cholesterol absorption to occur.
B) A high-fiber diet is typically high in dietary cholesterol.
C) This diet is a rich source of antioxidants, which can neutralize damaging free radicals.
D) a and c only
E) b and c only

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The most important difference between the typical American diet and the typical Mediterranean diet is that:


A) Americans eat more saturated fat.
B) Americans eat more fruits.
C) Americans exercise less.
D) Americans eat more monounsaturated fat.

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Which of the following statements concerning lecithin is not true?


A) It is a major constituent of cell membranes.
B) It is made by the liver from scratch.
C) It is an essential nutrient.
D) It is often added to foods as an emulsifier.

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For each of the following foods, suggest a replacement that is lower in unhealthy fats: a. Cheddar cheese b. 2% milk c. Mayonnaise d. Spareribs e. Fried chicken f. Fish sticks g. Pasta with Alfredo sauce h. Premium ice cream i. Croissant

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Health experts advise that you decrease consumption of foods rich in _____ and increase the intake of _____ to achieve a more healthful balance.


A) omega-6 fatty acids; omega-3 fatty acids
B) saturated fat; cholesterol
C) omega-3 fatty acids; omega-9 fatty acids
D) chlyomicrons; LDL

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A

Joy decides to cook dinner with less fat tonight and omits 2 tablespoons of vegetable oil from her recipe for rice pilaf. This change reduces the calories from fat in this recipe by approximately _____.


A) 24 calories
B) 50 calories
C) 200 calories
D) 350 calories

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Match the term with the short phrase or description that best matches it.

Premises
oxidized LDL-cholesterol
HDL
lipoproteins
LDL
VLDL
chylomicron
free radicals
foam cells
Responses
a type of lipoprotein that transports newly digested fat from the intestine through lymph and blood.
carries cholesterol to body cells.
the cholesterol in LDLs that is attacked by reactive oxygen molecules inside the walls of the arteries.
highly toxic compounds created in the body as a result of chemical reactions that involve oxygen.
clusters of lipids associated with protein that serve as transport vehicles for lipids in blood and lymph.
carries fats packaged or made by the liver to various tissues in the body.
carries cholesterol in the blood back to the liver for recycling or disposal.
cells from the immune system containing scavenged oxidized LDL-cholesterol that are thought to initiate arterial plaque formation.

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oxidized LDL-cholesterol
HDL
lipoproteins
LDL
VLDL
chylomicron
free radicals
foam cells

The body can store fat in practically unlimited amounts.

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Vignette #1 Jack has just returned from the hospital where Jack's father is recovering from a heart attack. The doctors told Jack that his dad's atherosclerosis is very serious. Jack and his wife, Melanie, are worried about Jack's father and also are starting to think about Jack's risk of also having heart disease in his lifetime. He sets up an appointment at his doctor's office and has his blood lipid levels evaluated for the first time. Let's see if you can answer some of the questions that Jack and Melanie have. What exactly happens in atherosclerosis?


A) Oxidized LDL is incorporated into the lining of arteries.
B) A blood clot travels to the brain and causes a stroke.
C) Chylomicrons cause veins to lose their elasticity.
D) Blood pressure is too low and dizziness occurs.
E) b and c

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Sam and Regina are new parents and want to do the best thing for their baby. Sam says they should put their baby on a low-fat diet right from the beginning. What advice would you give these new parents?


A) They are correct and the baby should eat no more than 35% of his or her calories from fat.
B) They are correct and the baby should only drink skim milk as a beverage.
C) They are incorrect; from birth to 2 years of age, a child's fat consumption should not be restricted for proper development.
D) The healthiest diet for everyone is a vegan diet.

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Unprocessed oils are best stored in airtight containers because:


A) exposure to the air will decrease the likelihood of rancidity.
B) airtight storage destroys the natural antioxidants in the oils.
C) points of unsaturation in their molecules are vulnerable to oxidation.
D) this prevents hydrogenation, which makes them less healthful.

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C

Compare and contrast the following lipoproteins: LDL, HDL, VLDL, and chylomicrons. Include where they are made, their functions in the body, and the correlation between high or low levels and heart disease risk.

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Most people have well-developed plaques in their arteries by the time they are:


A) 30.
B) 45.
C) 65.
D) 70.

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Eating more fiber promotes fat and cholesterol excretion.

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Which of the following makes up 95% of the lipids in the diet?


A) Triglycerides
B) Cholesterol
C) Phospholipids
D) Sucrose
E) Sterols

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The American Heart Association recommends a saturated fat intake of less than _____% of calories.


A) 30
B) 10
C) 7
D) 1

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What happens to fat when it initially enters the small intestine?


A) It is immediately digested by enzymes from the pancreas.
B) It is immediately emulsified by bile from the gallbladder.
C) It is absorbed as is through the villi packaged as a chylomicron.
D) It is trapped in fiber and carried out of the body.

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Vignette #2 Bob is committed to losing weight but knows little about nutrition. He has heard his friends discussing types of fat, such as saturated and unsaturated, but has no idea what the terms mean or how they relate to his health and diet. He also has read that the most important improvement a person can make in his or her diet is to eat less cholesterol. Let's answer these questions and help Bob understand this topic better. Which food is rich in saturated fat?


A) Steak
B) Banana
C) Avocado
D) Broccoli
E) a and c

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A

All food fats contain a mixture of saturated and unsaturated fatty acids.

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