cuz of the allergy to dry food i feed raw. but dont forget to give them calcium in order to keep phosphorus-calcium balance. getting too much phosphorus and not enough calcium will cause a lot of problems. chicken necks is a best natural sourse for calcium, but i just add 2 tablets of Calcid (i dont think u have it in Europe/US, but u can find any other eggshell calcium tablets) for 100 g of meat (he has allergy to chicken). this tablets are made of egg shell free of any other additions, so u can basically make it urself. wash shells, bake them in the oven for couple of minutes and pulverize it).