It is very important in a double-blind, placebo-controlled study that all of the factors that could influence the study results are
A. completely different for the groups of subjects.
B. equal and opposite for the groups of subjects.
C. kept to a minimum.
D. kept the same for the groups of subjects.
ANS: D
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Which of the following is a characteristic of Alzheimer's disease?
a. It affects 95% of those over 80 years of age b. It is responsive to dietary choline supplementation c. It is associated with stability of brain nerve cell number d. It is associated with clumps of beta-amyloid protein in the brain
Which statement describes a relationship between protein intake and calcium metabolism?
A) ?Calcium excretion falls with increasing intake of animal-derived proteins. B) ?Calcium excretion rises with increasing intake of animal-derived proteins. C) ?Calcium absorption declines with higher intakes of plant-derived proteins. D) ?Calcium absorption increases with higher intakes of animal-derived proteins.
The function of low-density lipoprotein is to:
a. carry cholesterol and triglycerides from the cells in the liver to other cells in the body. b. transport intact protein more easily through the blood. c. move cholesterol back to the liver for breakdown. d. deliver lipids into the portal vein.
Which of the following is true?
a. Iron supplementation is necessary for all endurance athletes. b. Vitamin C supplementation is necessary for all strength athletes. c. Vitamin A is stored in adipose tissue. d. Vitamin C is stored in adipose tissue. e. Iron is stored in adipose tissue.