Hazelnuts are known to humans since Mesolithic ages (approx 9 000 years ). Hazelnuts are great energy source.They are also rich in minerals and vitamins. They contain high amounts of manganese, magnesium, iron , phosphorus, zinc and potassium. They’re also good source of protein and monosaturated fatty acids. Thanks to the content of B-complex vitamins, manganese and vitamin E, they have antioxidant effects, support metabolism, fat burning and disables production of free-radicals in tissues.