Which of the following statements involving the interaction of protein and exercise training is false?
A. Research has shown conclusively that amino acid supplements and other protein supplements will enhance performance in sports
B. Resistance weight training programs usually result in the development of a positive nitrogen balance in most athletes who are attempting to gain body weight in the form of muscle mass
C. Although weight lifters and endurance athletes may need slightly more protein than accounted for by the RDA, such increased protein may be obtained readily and more economically through a planned diet
D. Small amounts of protein may be lost in the urine and sweat during exercise
E. Small amounts of protein may be used as an energy source during endurance exercise, but usually account for less than 5 percent of the energy cost of the exercise
Answer: A
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