Inadequate nutrition can significantly impair athletic performance by limiting energy availability, delaying recovery, and affecting overall health. Athletes require a well-balanced diet rich in carbohydrates, proteins, and healthy fats to support their training needs. Insufficient caloric intake can lead to fatigue, decreased muscle mass, and impaired immune function, all of which hinder performance. Furthermore, inadequate vitamins and minerals can compromise key physiological processes, such as oxygen transport and energy production. Proper nutrition is essential for optimizing performance, enhancing recovery, and reducing the risk of injury in athletes.