The hazelnut originated in the Mediterranean in countries including Spain and Turkey. The hazelnut has been cultivated and consumed by humans for 5,000 years.
In the United States, the majority of hazelnuts are grown in the state of Oregon. The country of Turkey is the largest producer of hazelnuts in the world.
The harvest season for hazelnuts is between August and October. The majority of hazelnuts are roasted to provide more flavor.
Hazelnuts are used in many products, including Nutella. The hazelnut is commonly used in baked goods and in the making of ice cream. This type of nut is also used in some chocolates.