Question: what is the difference between nutro and nutro ultra?
Answer: Now, there's NO gas and her poops are smaller and much easier to pick up on our nightly walks. Ultra is the top-of-the-line product made by Nutro. Its ingredients and nutrient profile are far superior to regular Nutro, which is a very grain-heavy overpriced food. What's the difference between Nutro Ultra and Nutro?