Why do endurance athletes practice "carbohydrate loading," meaning to eat massive amounts of starch in the days leading up to a long race?
A) Starch is used as a building block for the synthesis of many other molecules.
B) Carbohydrates are reduced molecules that can provide the chemical energy required during exercise.
C) Starch can be used to synthesize cellulose and build up the cell walls of muscles.
D) Starch provides dietary fiber or "roughage" that aids digestion.

Question

Quizplus · Accepted Answer

Carbohydrates are broken down in the body to provide glucose, which is used for energy. Endurance athletes require large amounts of energy to sustain prolonged exercise, and carbohydrate loading ensures they have sufficient glucose stores to meet these demands.

Why Do Endurance Athletes Practice "Carbohydrate Loading," Meaning to Eat