As a cat gets older there are significant physical and environmental changes that influence its dietary needs. Exercise, shedding, digestion, and even whether they are an indoor or outdoor cat can dictate the type of food they should have. Finding the right food is a continuous process as your cat's needs change with their life stages, and it's up to you to fulfill those needs. While it is encouraged to be involved and practical about your cat's diet, giving them homemade cat food or treats should be avoided due to the complex dietary requirements in cat food.