My Tucker inhales his food. I swear he can't be chewing it, it goes down so quickly. He was at one time a stray and I'm wondering if this is from the experiences he had while on his own. He was very skinny when we got him, but has packed on a few pounds and really will be fat if he puts on any more, so he surely is getting enough but his method of consuming food has not changed. When I feed him, I dare not blink or I will miss the act of his eating.