PLEASE be careful doing this. Onions and garlic can be very poisonous to dogs. Some may be more tolerant to it than others but can be fatal to some.I used fresh garlic clove, had to wrap it in turkey or something in order for my dog to eat it. The garlic would get into his blood stream and blood parasites didn't like it. I would give it to him about every 2-3 weeks. It is cheap and I have it on hand