Food & NutritionHow to choose good dog food? What about expensive vet diets?
Foods in the US need to be regulated under AAFCO standards to be complete and nutritionally balanced, so most foods will do a good job of making sure your pet stays healthy and happy. Specialist foods generally are designed to treat an issue, such as a food allergy or a health problem, and are beneficial for pets that need it. As for the prescription diets your vet sells, these are specially formulated to help treat a specific medical condition like a prescription medication would. They are prescription-only because of this, and sometimes cost a bit more because a lot more research and formulation (and sometimes unique ingredients) goes into them to make them able to treat a health condition. In many cases, your vet can send a prescription for this food to an online pet store or pharmacy so you can purchase the product cheaper.
Updated on September 24th, 2025