Using real meat instead of derivatives in cat food is beneficial because cats are obligate carnivores, meaning they require nutrients found primarily in meat to thrive. Real meat provides essential nutrients like taurine, arginine, and vitamins A and D, which are crucial for a cat's health and cannot be adequately replaced by plant-based ingredients or derivatives. Moreover, real meat ensures higher bioavailability of these nutrients, making them easier for cats to digest and absorb, leading to better overall health and well-bein