While it seems like most people on this site seem to feel that garlic is fine to give to dogs, I would NOT choose to give it to my dogs. Garlic (from what I can tell, in any form) can cause Heinz bodies in a dog's red blood cells, and these Heinz bodies make the red blood cells more likely to break apart (or lyse). Ultimately, the dog can develop a hemolytic anemia which can be deadly. So is it possible that a dog could eat some garlic and be alright? Yes. Could it also cause severe illness, perhaps even death? Yes. For me, that's not a risk I'm willing to take.
One last comment: one poster commented that dogs generally have good sense about what they should/should not eat, so if you offer it to them and they eat it, it's alright. I would be very careful with going by this rule. My dogs will readily eat garlic, grapes, onions, and chocolate. All of these things could cause major problems. Furthermore, it's been reported time and time again that dogs LOVE the taste of antifreeze; something that in very small amounts can cause death in a very short time period. So while I do think that dogs generally have good instincts, I probably wouldn't use this as my gold-standard for whether or not it is harmful to them. ... View related article.
