Up to 15 lbs ½ to 1 ¼ cups* 16 to 25 lbs 1 ¼ to 2 cups* 26 to 40 lbs 2 to 2 ¾ cups* 41 to 60 lbs 2 ¾ to 3 ¾ cups* 61 to 80 lbs 3 ¾ to 4 ½ cups* 81 to 100 lbs 4 ½ to 5 ½ cups* Over 100 lbs 5 ½ cups + ½ cup for each additional 20 lbs *Use a standard 8-oz. measuring cup. Note: Individual dog's requirements may vary due to age, breed, environment, and activity level. Adjust food as required to maintain optimal body condition, and ask your veterinarian if you are unsure.