Essential’s Walnut Halves. Organically Grown Light Walnut Halves. Walnuts are the nutritious stones of the fruit of Juglans Regina, the Persian or English walnut. Used as an ingredient, topping and/or flavouring. A good source of Copper and Manganese in the diet. The only nut with significant amounts of Omega 3. Storage: Cool, dry & hygienic; away from direct light & strong odours.