Unifour Natural Pet Foods provides products to help you feed your pet what and how they were meant to eat-- a species specific diet. Natural Foods for Healthy Pets! Unifour Natural Pet Foods began operations on July 1, 2012. We are a small, family owned business. Our 3 dogs, Zayla, Freya, and Jasper play their part by always being on alert to make sure the “dog bell” is ringing long before you get to the door. The cats, Festive, Crystal, and Buddy are much more elusive but love on them if you get the chance.