Which of the Following Is True About Protein Consumption in Athletes

Which of the following is true about protein consumption in athletes?

A) Many athletes use high-protein bars and shakes to supplement their protein intake.
B) There is a consensus among experts that athletes need more protein than they are currently consuming.
C) Evidence suggests that athletes may be less efficient than nonathletes at using amino acids, contributing to a higher need for protein.
D) Protein intake is the single most important factor contributing to an athlete's performance.
E) All of these are correct.