Known as both a medicinal herb and a food, garlic is touted for its numerous healing properties. Supplementation can be beneficial if ingesting raw or cooked garlic causes stomach irritation, bad breath or body odor.lthough the National Institutes of Health states that garlic supplementation is considered safe for consumption by most adults, herbal supplements are not subject to approval by the FDA. It is always a good idea to let your physician know what supplements you take on a regular basis.