Food Intolerance Becomes Apparent In Puppyhood
Food intolerance is a reaction that doesn’t involve the immune system but may cause vomiting, diarrhoea or other clinical signs. Any dog at any age may develop a food intolerance but they are often first seen during puppyhood. Food intolerance has a different mechanism to food allergy. A food allergy occurs when a dog’s immune system reacts to a component of its food. Food allergy often causes one or more of an itchy skin reaction, vomiting and diarrhoea. Food allergies are rare during puppyhood.