Wheat is a commonly used grain for human consumption. It is an annual grown grass plant that can grow 2-3 feet tall. It is one among the top 3 most produced crops of the world, besides rice and corn. Wheat is known to be cultivated since more than 10,000 years. A wide variety of products are created from it by human beings, including flour, which is prepared from the wheat grain. Bread, pasta, pretzels, licorice and cereal are all foods that are made with wheat.