Our dog Logan has colitis, and we used to use a dry food that suited him but he became ill after having a new bag of the same food, which we later realised had different ingredients.

The rules on listing ingredients in food for consumption by humans are stricter than those on pet foods. Some pets could die if they have allergies to foods. Requiring a full list of ingredients on pet food and labels to state any recent changes to this should help prevent pets getting sick from pet food when the ingredients have changed.