One Bag Doesn't Fit All
Did you know that your dog's nutritional needs can change, depending on her age and stage of life? Consult your vet before making any food changes. If you get the go-ahead, consider the following factors:
Most young, growing dogs need more food, but overfeeding large-breed puppies can cause their bodies to outgrow their bones, which can lead to orthopedic disease.
Pregnant or lactating dogs, and those that live outside during very cold weather, have increased calorie needs.
Large breeds over 5 years old and smaller breeds over 7 years should eat a diet that has less fat; is low in phosphorous, to help reduce the risk of renal disease; and contains more fiber, to prevent constipation.