Which of the following individuals is maintaining a healthful weight?
A. Evita is 5'1" tall and weighs 100 pounds. In order to maintain this weight, she follows a strict macrobiotic diet, weighing her food and calculating her kcal intake. She also works out daily for at least 60 minutes a session.
B. Raylene is 5'3" tall and weighs 150 pounds. Throughout high school, she participated in basketball and track, and weighed about 30 pounds less than she does now. Since starting college, her weight has slowly crept upward, probably because she snacks excessively while studying and no longer participates in sports. Her only regular physical activity is walking between buildings on campus. She is very unhappy with her current weight.
C. Zach is 5'7" tall and weighs 150 pounds. His male relatives are all short, small-boned, and thin. Zach is determined to bulk up, so he works out with weights six days a week, eats a high-protein diet, and takes an illegal steroid supplement he obtains from a bodybuilding friend.
D. Sandeep is 5'9" tall and weighs 150 pounds. He is a busy pre-med student, but he makes it a habit to walk the 2 miles to and from campus each day, and takes a twice-weekly power-yoga class. Sandeep's blood pressure is 110/70, and his blood glucose and blood lipids are normal.
Answer: D
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Which of the following foods is the richest source of omega-3 fatty acids?
A) sirloin steak B) broccoli C) tofu D) salmon
Glycemic index is a measure of:
a. a protein-containing food's effect on blood glucose. b. a food's carbohydrate calorie content. c. a carbohydrate-containing food's effect on blood glucose. d. the amount of fiber a food contains.
Adding a small amount of ________ to cooked vegetables can enhance the intestinal tract's ability to absorb the fat-soluble vitamins they contain.
A. oil B. wine C. sugar D. water
All of the following are correct about phytosterols except:
a. they may reduce blood cholesterol when consumed as part of a low-fat diet. b. they are structurally similar to the steroid hormones. c. they are found in all margarines made from vegetable oils. d. they block the absorption of dietary cholesterol from the intestine.