Wheat is one of the world’s most commonly consumed cereal grains.Bread wheat, or common wheat, is the primary species. Several other closely related species include durum, spelt, emmer, einkorn, and Khorasan wheat. Wheat is highly controversial because it contains a protein called gluten, which can trigger a harmful immune response in predisposed individuals. Wheat has rich source of various antioxidants, vitamins, minerals, and fiber. Wheat can be used for baking goods and also used to make pasta, noodles, semolina, bulgur, and couscous.