Purina pro plan veterinary diets canine en gastrointestinal is a highly digestible complete veterinary dry food which has been specifically formulated to help manage gastrointestinal and pancreatic conditions canine en gastrointestinal is suitable for dogs of all ages and can also be used for puppies dogs suffering from gastrointestinal problems often suffer from appetite and weight loss vomiting and diarrhoea they have trouble digesting food and often do not absorb all the essential nutrie