Keeping a German Shepherd healthy involves a combination of regular exercise, a balanced and nutritious diet, routine veterinary check-ups, and proper grooming. Be aware of breed-specific health issues, such as hip dysplasia and digestive problems, and take preventive measures when possible. Regular dental care can help prevent dental diseases, and a parasite prevention plan should be implemented to keep them pest-free. Lastly, mental stimulation is just as important as physical health, so ensure they have plenty of engaging activities to keep their minds sharp.