We tried the Purina Pro plan because it has the essential fatty acids that were reccommended for our dogs' skin.  We have a 7month old westie and a pittbull that suffers frequently from hotspots and rashes and we were told that she needed to have more fatty acids in her diet.  We thought we had found the miracle food until the beginning of this week. 

After weaning her off of her old food we started giving her only the pro plan, and on monday she quit eating which was soon followed by our westie that stopped eating.  Tuesday morning our pitt experienced extreme diarhea and vomiting though out...