Instruct: Classify Amazon reviews into positive or negative sentiment
Query: I'm Not Sure Yet.

I have an Olde English Bulldogge, with some horrific breath. He's huge, and simply won't allow grooming to be done to him. Something to help his breath as simple as sprinkling powder on his food is a dream come true! So far, it doesn't seem to bother him. He eats it perfectly fine. To be honest, I don't know how well it's helping him yet. From a few of the reviews I've seen, it might take a couple of months to tell.Overall, while I can't vouch yet for its effectiveness, it doesn't seem to be causing him harm. I'll keep using it, and update on his progress.