What should I feed my Pitbull? Considering the nutritional requirements of such a robust and energetic breed, how can I tailor their diet to not just maintain optimal health, but also to promote vitality and longevity? Is it sufficient to rely solely on commercial dog food, or should I delve into the complexities of a homemade diet that incorporates a variety of proteins, healthy fats, and carbohydrates? Furthermore, how does the age, weight, and activity level of my Pitbull influence their dietary needs? Are there specific ingredients I should seek out or avoid, such as grains, fillers, or artificial additives that might compromise their well-being? Additionally, how often should I adjust their food portions, especially if their weight fluctuates or if they exhibit particular health conditions? What role do supplements play in their diet, and how can I ensure that I am providing the most nutritious options available to support their unique characteristics?