Catahoulas, given their high energy levels and active lifestyles, require a balanced diet rich in protein to support muscle development and maintenance. High-quality commercial dog food with meat as the first ingredient is recommended. Include sources of healthy fats, like omega-3 and omega-6 fatty acids, to promote joint health and a shiny coat. Carbohydrates from whole grains and vegetables provide sustained energy. Regularly consult with a veterinarian to ensure the diet meets the specific needs of the individual dog, adjusting portions and nutrients based on activity level and health status.