Treatment Type: Foods and treats
Rated for: American Paint Horse
Somers, Connecticut, United States
Posted Jan. 6, 2019
There is virtually no research that has been done on supplemental garlic as an effective fly repellant in horses. However, garlic has been associated in large quantities with Heinz body anemia, a disease that effects the red blood cells. In an article in the magazine Horse and Rider, Dr. Karen Hayes states that vets do not know the toxic dose of garlic in horses, and advises readers to exercise caution when feeding garlic to their horses.
Additionally, even if garlic turns out to be an effective fly repellant, there's going to be little to no effect if you board and your horse is the only one being fed garlic. If there are piles of manure 10 feet away from other horses, the flies are going to find your horse, garlic or no garlic.