Answers Straight formula is ideal for pet owners that are looking for a limited-ingredient panel. Comprising of only three ingredients, Straight formula serves as a great base for pet food customization. For a complete meal, add the suggested serving of our Fermented Raw Goat’s Milk or Raw Cow's Milk Kefir for a nourishing and easily digestible meal. Beef, Chicken, Pork, and Turkey recipes available.