Very long story but I'm looking to possibly switch my cat to raw after just recently finding freeze dried raw diet that my cat actually likes. my cat weighed in at seventeen and a half pounds at his last vet appointment. he throws up randomly which you can read about in a different post of mine. anyways my main question is if i switch him to raw will he still loose weight? And he is now on portioned diets so we know exactly how much he eats so how much do i feed him on raw? He gets a half a cup a day of dry kibble. currently prescription weight loss diet.