Answer:
Athletes need carbohydrates before a competition because they are the primary source of energy for the body. When we eat carbohydrates, our bodies break them down into glucose, which is then used by our cells as fuel. During exercise, our bodies use a combination of carbohydrates and fats to produce energy, but when we engage in high-intensity activities such as running, cycling, or playing sports, our bodies rely heavily on carbohydrates to provide the necessary energy.
Carbohydrates also help to replenish glycogen stores in our muscles and liver, which can become depleted during exercise. This is important because glycogen is stored glucose, and it is the primary energy source for our muscles during exercise. When glycogen stores are low, athletes may experience fatigue, weakness, and decreased performance.
Therefore, consuming carbohydrates before a competition can help to ensure that an athlete has enough energy to perform at their best and avoid fatigue or other negative effects associated with low glycogen stores.