Hazelnuts, unlike almonds and Brazil nuts which are seeds and not nuts, is a fruit of the hazelnut tree.
Hazelnuts have known to have used from as far as history has been recorded. The Romans and the Greeks have relished the nut for its flavor and also used them as as medication.
Hazelnuts are consumed world over, as a snack by itself or used as part of baking and chocolate making. They pair wonderfully with chocolates.
Although they are known to be high in calories, they are loaded with nutrients and good fats.