[HoundMusic]

The amount of carbs, grains, sugars, etc in the diet have nothing to do with yeast growth on skin. If your dog has a food hypersensitivity reaction (allergy) to an ingredient in the diet the adverse reaction can alter the skin and allow yeast to grow.

That is absolutely untrue. Yeast feeds off simple sugars and certain types of complex carbohydrates, and an overgrowth will often take the form of a skin rash.