iO Garlic Granules is a high grade supplement and is a stimulant for horse and animal immune systems. Helps increase horses appetite and acts as a fly repellent. Reduces blood pressure and purifies blood. May help to eliminate parasites and worms. Quick Facts & Benefits: Garlic is also rich in selenium and sulphur. If an overdose of garlic is provided and more red blood cells are prematurely damaged, your horse becomes anaemic. When fungi or other soil pathogens attack the cloves, allicin is released and the anti-bacterial, antiseptic and antibiotic action takes place.