Food is any substance consumed to provide nutritional support for the body. It is usually of plant or animal origin, and contains essential nutrients, such as carbohydrates, fats, proteins, vitamins, or minerals. The substance is ingested by an organism and assimilated by the organism's cells in an effort to produce energy, maintain life, or stimulate growth.
Historically, people secured food through two methods: hunting and gathering, and agriculture. Today, most of the food energy consumed by the world population is supplied by the food industry.
A chocolate bar is a confection in bar form comprising some or all of the following components: cocoa solids, cocoa butter, sugar, milk. The relative presence or absence of these components form the subclasses of dark chocolate, milk chocolate, and white chocolate. In addition to these main ingredients, it may contain emulsifiers such as soy lecithin and flavors such as vanilla.
In most of the English-speaking world, chocolate bar also refers to what is typically called a candy bar in American English. This is a form of confectionery usually packaged in a bar or log form, often coated with chocolate, and sized as a snack for one person. But within that term, a wide variety of products exists, ranging from solid chocolate bars to multiple layerings or mixtures of ingredients such as nuts, fruit, caramel or fondant containing no chocolate.
Kit Kat is a chocolate-covered wafer biscuit bar confection that was created by Rowntree's of York, England, and is now produced worldwide by Nestlé, which acquired Rowntree in 1988, except in the United States where it is made under license by The Hershey Company. Each bar consists of fingers composed of three layers of wafer, covered in an outer layer of chocolate. Each finger can be snapped from the bar separately. Bars typically have 2 or 4 fingers. Larger Kit Kat Chunky bars are also popular.