There are specialist foods (for example HILLS d/d and z/d, Royal CANIN Sensitivity Control) that are often used in cases of digestive sensitivity or allergies. Of course these cost an arm and a leg and when you actually check the ingredients labels and interpret what these really contain you may want to search for something better!
The majority of the Burns foods can be used as alternatives as they are ALL hypo-allergenic, low fat and with a single named protein source. The Venison, Duck and Pork are ideal if the normal meats (Chicken or Fish) are identified as a cause of the problem. In the rarer case of rice intolerence the Pork and Potato probides an alternative source of carbohydrate.
Of course you could also try the Fish 4 Dogs (Fish & Potato) or Applaws (Chicken & Potato) instead as these have a higher REAL MEAT content than the Burns and will aid with building or maintaining muscle mass.
See the
Burns Alternative Selector