I just read a study on ginger extract to treat heartworms, but they weren’t looking at it to prevent heartworms. I’ve never heard of beer as a preventive. I live in a area where heartworms are very prevalent and after working for a vet for many years and seeing how hard treatment is on dogs, I’m afraid to try alternative preventives. The only one I’ve read about that has any study behind it at all has to be given 3 times a day. Heartworm preventives is the one chemical my dogs are getting.
If I lived in an area where it wasn’t so common, I would probably risk it though.
