Athletes may need to consider various dietary restrictions based on their sport, personal health, and performance goals. Common restrictions include managing gluten for those with celiac disease or lactose for lactose intolerance. Some athletes opt for vegetarian or vegan diets, which necessitate careful planning to ensure adequate protein and essential nutrients. Additionally, monitoring hydration levels and electrolyte intake is crucial during intense training. Ultimately, individualized dietary planning can enhance performance and support overall health.