Different types of nuts like almonds, brazil nuts, hazelnuts, peanuts, pine nuts, walnuts and cashews are present all over the world. Hazelnut is the nut of the hazel deriving from species of the genus Corylus, especially the nuts of the species Corylusavellana. It is the second most expensive nut and needs cold and hilly terrain with a few days of sub-zero temperature. Therefore, Himachal Pradesh, Jammu and Kashmir, Silguri, Uttarakhand & North-East states make the best choice in India. It takes three to five years for hazelnut plants to grow and yield fruit. Hazelnuts are rich in monounsaturated fatty acids, antioxidant bioactive substances & rich source of oleic acid (about 80%), which decreased risk of cardiovascular disease. It is used as antioxidant, hypocholesterolemic, cardioprotective, anticancer, anti-inflammatory & in production of biodiesel. Turkey is the biggest market of the hazel nut in the world. The present article provides an overview about the significant of hazelnut.
