Cloves are a versatile spice that add flavor while also providing health benefits. They are high in antioxidants, may help regulate blood sugar, can kill bacteria, and more. Cloves are the flower buds of the clove tree, an evergreen also known as Syzygium aromaticum (1Trusted Source). Found in both whole and ground forms, this versatile spice can be used to season pot roasts, add flavor to hot beverages, and bring spicy warmth to cookies and cakes.