Bars are a generic term used to refer to a wide range of square or rectangular, dry, preservable food items made of cereals, fruits or nuts. Fruit, cereal and nut bars are highly nutritious as they are fortified with a number of vitamins, minerals and energizers. Breakfast bars are a big hit with busy professionals and school students who neither have the time to prepare or eat conventional breakfast dishes. Chocolate bars, though high in food value, are consumed as dessert items for their irresistible taste and not as health food supplements.