There are many types of dog food, and with recent food recalls it becomes more necessary to be aware of what is in your dogs food. The first item to be avoided is "meat and grain by products" it is just what it says. These are food materials used from waste products in the butchering process. These contain no muscle tissue and are labeled unfit for human consumption. With that said, can it be good for your dog?Also be aware of any "meals" such as chicken by product meal. (same thing)
Also check for as few or none existent preservatives, artificial colors, or flavors. Color doesn't have a high priority for your dog. Food with artificial dyes, such as Red 40 can impact you, if your dog vomits, the color will stain your carpets and other items.
Common fillers will bulk up the weight and volume of your dogs food, but provides little or no nutritional value. More wasted bulk results in only more "doo doo" for you to clean up.
Looking for dog food with little or no extra sweeteners is good, remember, it is the same for your dog as you. Sweeteners and high fructose corn syrup they may like, but not of any good value.
What should you look for?
Foods that list NATURAL ingredients, no by products or fillers. Foods that have meat products listed first. The first ingredients on the label are what the highest percentage of items in the container. Remember, your dog is a carnivore, and meats should be highest on the list.
Always, if in doubt, contact your veterinarian for health care and diet advice. Some animals do have dietary needs that will be addressed further.