Leeks contain important flavonoid antioxidants, minerals and vitamins that have proven health benefits.
They are low in calories (100 g of fresh stalks contain 61 calories) and their long stalks provide good amounts of soluble and insoluble fiber.
Laboratory studies have shown that allicin lowers cholesterol levels and has antibacterial, antiviral and antifungal activity. Allicin also reduces the stiffness of blood vessels, thus lowering blood pressure, inhibiting blood clot formation and helping to reduce the risk of coronary heart disease, vascular disease and stroke. Thanks to its iron content, leeks can help fight anemia.