Garlic is the bulb of Allium sativum, a plant used in kitchens and healing traditions for centuries. The compound allicin forms when the clove is crushed or cut, and it drives many of garlic’s body-wide actions. Standardized extracts deliver consistent allicin potential in capsules, tablets, and odorless or time-release formulas. Taking it with food often helps avoid stomach upset.
People reach for garlic to help the heart move the goalposts in the right direction: supporting blood pressure and cholesterol numbers that are already healthy. It also shores up the body’s natural immune response. Some data point toward a steadying effect on blood sugar that stays within a normal zone.
Garlic changes how blood platelets behave, which means it can slow clotting. That raises the stakes if you take blood thinners, certain antibiotics, or blood pressure drugs. Bad breath and body odor are common annoyances, and a few people notice mild gut grumbles.