Dallas, a healthy, active teenager, was diagnosed with PKU when he was only a few days old. In addition to foods that are manufactured to be low in phenylalanine, which of the following foods can he eat to meet his protein needs safely?
A. Baked potatoes
B. Fat-free milk
C. Lean hamburger
D. Fried fish
Answer: A
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Why is taking excess amounts of fat-soluble vitamins more likely to cause toxicity than taking excesses of water-soluble vitamins?
A. In general, water-soluble vitamins are more likely to be stored in the body than fat-soluble vitamins. B. The body has higher requirements for fat-soluble vitamins. C. The body has higher requirements for water-soluble vitamins. D. In general, excesses of fat-soluble vitamins cannot be excreted as easily as water-soluble vitamins.
All of the following factors have been shown to be influenced by genetics except:
a. susceptibility to obesity. b. how energy is stored. c. basal metabolic rate. d. appetite.
Excretion of minerals is generally:
a. zero. b. low. c. moderate. d. high.
Gram per gram, which of the following provides the most Calories?
a. Alcohol b. Lipids c. Proteins d. Carbohydrates