Each dog has a diet that will help keep him at his best. For some dogs, it could be a food formulated without corn, wheat, or soy. For others, it might be one that's grain-free, or easy to digest. You know your dog's unique needs-Pro Plan(R) Select(TM) is designed to meet them. This food is formulated for adults dogs with sensitive skin and stomach. The nutrient-rich salmon is the first ingredient and is a primary source of protein. Rice and oatmeal are easily digestible and gentle on the digestive system. Feeding Guidelines: 3-12 lbs ; 1/2 - 1 cup13-20 lbs ; 1 - 1-1/2 cups21-35 lbs ; 1-1/2 - 2-1/4 cups36-50 lbs ; 2-1/4 - 2-3/4 cups51-75 lbs ; 2-3/4 - 3-2/3 cups76-100 lbs ; 3-2/3 - 4-1/2 cupsOver 100 lbs ; 4-1/2 cups plus 1/3 cup for each 10 lbs of body weight over 100 lbs. Making the Switch to Pro Plan: Although you'll be anxious to see the difference Pro Plan can make in your dog, please allow 7-10 days to ease the transition from your dog's current food. Each day, simply feed a little less of the previous food and a little more Pro Plan until you're feeding Pro Plan exclusively. This gradual transition will help avoid dietary upsets. Provide adequate fresh water in a clean container daily. For your pet's health, see your veterinarian regularly. | Purina Pro Plan Select Sensitive Skin and Stomach Formula, Adult Dry Dog Food | Size 30 lbs