An experiment in which the participants do not know whether they are receiving the treatment or placebo but the scientists do is called a
A. disorganized study.
B. double-blind study.
C. single-blind study.
D. cause and effect study.
C
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Which of the following individuals would be at risk for a vitamin K deficiency?
A) a 6-year-old child who does not eat any vegetables B) a 55-year-old perimenopausal woman C) a 16-year-old adolescent who drinks 4 to 5 cans of soda each day D) a 30-year-old with Crohn's disease
According to the Dietary Guidelines for Americans, maintaining a healthy body weight is emphasized by:
a) following a diet that provides fewer than 120 grams of carbohydrate daily. b) following a diet with less than 10% of total calories from fat. c) increasing protein intake. d) moderating calorie intake.
Which of the following is true of type 2 diabetes?
A) It is the least common form of diabetes. B) It frequently occurs during childhood or adolescence. C) It is caused by insulin resistance. D) It is considered an autoimmune disorder.
Type 1 and type 2 diabetes are diagnosed when fasting levels of blood glucose are ? _____ mg/dL
a. 100 b. 126 c. 137 d. 145 e. 150