Garlic has certain sulfur compounds in it and when someone has an allergic reaction to them, it can cause a whole variety of adverse side-effects. It is important for those who have such a reaction to stop taking it as soon as possible so as to avoid any future problems.

Unfortunately it can be difficult to know whether or not you are allergic to such sulfur compounds until you take a garlic supplement, though the allergic reaction to it usually isn’t all that serious. Once you have discovered that you have this allergy, you will want to stay as far away from these supplements as possible.