Dr. Sullivan is conducting a clinical trial to determine if vitamin Z can improve test performance
of students in an introductory college nutrition course. Dr
Sullivan puts all the student names in
a hat and draws names to determine if they will be placed in the control or the experimental
group. The experimental group receives a capsule of vitamin Z and the control group a "sugar
pill" that tastes and looks identical to the vitamin Z capsule. Neither Dr. Sullivan nor the
participants knows who is receiving which treatment. This experiment is BEST described as
A) double-blind, placebo-controlled.
B) single-blind, random selection.
C) single-blind, random selection, placebo-controlled.
D) double-blind, random selection, placebo-controlled.
D
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Which of the following physical activities metabolizes the most fat?
A. Walking for an hour B. Performing 200-meter hurdles during competition C. Running for two hours D. Hard cycling for 1 hour
Bertha suffers from diabetes and has had symptoms of abdominal pain and diarrhea after taking her sugar-free cough medicine. What is the most likely cause?
a. Food allergy b. Lactose tolerance c. Flatulence d. Sugar alcohol
Mike should keep his sodium intake at or below _____ mg per day to help prevent heart disease
a. 1,000 b. 1,600 c. 2,000 d. 2,400 e. 2,700
A good food source of copper is _____, and this mineral used by the body to help manufacture _____
a. whole grains; collagen b. nuts; thyroid hormone c. citrus fruits; white blood cells d. deep orange vegetables; insulin