How much beta-carotene is considered equivalent to one unit of vitamin A?
A) twelve units B) six units
C) two molecules D) one molecule
A
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A kilocalorie is a measure of
A. sugar and fat in food. B. heat energy. C. nutrients in food. D. fat in food.
Research has shown that time to exhaustion can be ___________ with consumption of a ___________ carbohydrate diet.
a. decreased; high- b. increased; high- c. decreased; low- d. increased; low- e. painful; high-
Why did sailors prior to the 1800s suffer from a disease that caused old wounds to open?
a. They were deficient of vitamin C, which is necessary for collagen synthesis b. They were deficient in vitamin B12, which is needed for skin integrity. c. They were deficient in niacin, which is necessary skin integrity. d. They had toxic levels B6, which caused a breakdown in collagen.
Which of the following correctly describes "milk displacement"?
A) the avoidance of dairy products due to the fear of agricultural contaminants B) the recent surge in formula use C) the selection of low-nutrient beverages (e.g., soda) in place of milk D) the self-weaning of an infant from breast milk