This depends on the individual dog and what you want to add. We do not recommend adding other pet food to Pero complete foods.

If a health problem is present more care is needed and the diet may need to be controlled strictly.

A prepared pet food cannot be made exactly to suit every situation. It is not advisable to add things regularly to the food in order to get the dog to eat more. Over a period of time this will result in the dog eating more than it would otherwise and could undo the benefit of Pero.