Please forgive me, I am computer illiterit, or I just can't find what I am looking for.

I haven't brought my Archie home yet, he is just 5 1/2 weeks old and while we are preparing I thought I would like to make him his puppy treats. I've read that onions and garlic are no-no's, but so many recipes have garlic powder. Is this different or should I stay away from it? I won't be making anything for a while yet b/c I want them to be fresh, so any advice would be appreciated.