I do agree that at 8 weeks old, he is too young to be given treats, unless you are trying to reinforce positive behavior. Otherwise, just make sure he has adequate high quality food, plenty of water and lots of play/snuggle/cuddle time with you. I use treats with my 8 month old kitten sparingly and is reserved for special occasions only. If I am giving her new suggestions (in a dog's world, it'll be called teaching a new trick
, ) then she will get more treats.