A walnut is the nut of any tree of the genus Juglans (Family Juglandaceae).
A walnut is the edible seed of a drupe, and thus not a true botanical nut. It is commonly consumed as a nut. After full ripening for its edible seed when the shell has been discarded, it is used for food as a garnish or a snack.
Walnuts are also popular in brownie recipes, as ice cream toppings, and walnut pieces are used as a garnish on some foods.
Many Studies find walnut to be beneficial to a lot of issues like lowering blood pressure, managing Type-2 Diabetes,