A balanced diet is crucial for effective UPSC study sessions, as it fuels brain function and enhances concentration. Proper nutrition ensures that the body receives essential vitamins and minerals required for optimal cognitive performance. Foods rich in omega-3 fatty acids, antioxidants, and whole grains support brain health, improving memory and retention capabilities. Staying hydrated is equally important, as dehydration can impair mental processes. Incorporating a mix of proteins, healthy fats, fruits, and vegetables helps maintain energy levels and focus during long study hours, facilitating a more productive and efficient preparation phase.