He will do fine with Raw Instinct.. also look for natural, grain-free treats. Sitstay and Onlynaturalpets have good selection. Whatever you do, no greenies... they should ban those. Good raw bones like beef ribs with most the fat cut off make great treats and keep the teeth and gums clean. entertain the dog for hours. When they start to chew down to sharp edges throw it away.... or try the knuckle bones on the two sites I mentioned, toss out the small part of the knuckle and the dog will chew on the large part for hours on end.
Oh, more good advice - thanks.