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

Nutritional Science

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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

Nutritional Science

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.

Nutritional Science

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.

Nutritional Science

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

Nutritional Science