F.M. Brown's Sons, Inc. - Nutrition Plus Lab Diet Pet Mouse and Rat FoodNutrition Plus, a premium, vitamin-fortified food, is formulated to provide the proper nutrition your pet requires. We've blended the highest quality select seeds and grains together and topped it off with our colorful, vitamin-packed food shapes that make feeding time exciting, tasty, healthy, and fun.2 LB - UPC: 42934444079