The onion plant contains volatile sulfurous compounds that give it its characteristic spicy flavor and is a low-energy food.

Peel away the skin of this vegetable to find whole layers of health benefits. Worshiped by the Egyptians as far back as 3500 B.C., the onion symbolized eternity because of its concentric-circle ...

Onions and garlic are mainstays of most kitchens ... as well as other health benefits. Definite proof of these health benefits of leeks will depend upon future studies with humans.