I have two bulldogs myself and as you may or may not know they are prone to skin conditions such as hot spots etc. I have found staying away from found that contains high amounts of yeast and corn meal works great. I personally recommend AVO-DERM its an avocado based food that works great for there coat and since on this food I have had zero skin problems.(6 years) I get mine from a feed store. Good luck.
Pet food as you've found is a very controversial issue right now in veterinary medicine. There are many things we are learning all the time about pet nutrition so there is no "correct" answer. All dogs need carbohydrates, protein, and fat. The ratio of these 3 energy sources varies considerably between foods. Feeding a high quality pet food and monitoring your dog is the best way to feed a dog correctly. Most pet foods have not gone through any testing. Also the contents label on the bag can be very misleading--they have to list the amount of protein etc, but that does not mean it is digestible protein. Some of the materials contain protein but a dog's gut is not able to break it down. AAFCO (Association of American Feed Control Officials) will approve certain pet foods that have undergone testing etc. Look for their seal on the food you are interested in feeding your dog. There are many great brands--the five I am most familiar with are Iams, Eukanuba, Purina, Science Diet, and Royal Canin. A general rule is to stay away from grocery store brands and generic dog food. Your veterinarian can help you choose a diet or assess the one your bulldog is on now. Bulldogs are prone to becoming overweight, feeding an appropriate amount, monitoring weight and body condition score are very important.
