Many medical conditions can affect your dogs skin, and dog skin disorders are one of the most common reasons for veterinary visits. In this article, Dr. Melissa Boldan discusses the most common dog skin issues.
The other 3 dogs are fine. Of course this skin issue could be from anything, but I am trying to rule things out and wanted to find out if anyone has had a similar reaction with the food? This is the first time I had tried Acana.

Also, your dog may eat grass to improve digestion or to treat intestinal worms, or fulfill his/her nutritional needs as well. Some also think that its an instinctual behavior for dogs to eat grass and the Doberman breed is no exception.

Furthermore, visual representations like the one above help us fully grasp the concept of Dogs Eating Wild Grass And Skin Issues.
It is normal and common for dogs to roll in the grass. While the exact reasons they do it may differ from dog to dog, it is often related to their instincts. Dogs like rolling in grass primarily because they use their scent to communicate.
Another reason that dogs eat grass is that they are deficient in certain nutrients that they need. A dogs diet must contain adequate levels of protein, fat, calcium, salt and carbohydrates. However, the problem is that most dogs do not eat enough of these items.