I got gizmo crushed rosehips. I was giving him whole but since he only has one arm, he had a hard time holding it to eat it. So now he eats the crushed, but how much should I give him in one sitting? I've basically just been grabbing a little handful to sprinkle in his food dish a few times a week. Is this too much or too little? I'm not really sure how much would make up a whole bud.