Nutrition and the amount of each food type. Which are essential to the body in the right proportions. And meet the needs of the body. People who eat junk food Focused on starchy foods, sugar and fat, too. But the lack of nutrients such as protein, vitamins and minerals, as well as the amount of food was not proportional to the needs of the body also may eat food category repeatedly. Will not benefit the body. The body is getting the nutrients that are incomplete. And lack of diversity For the long-term effects May cause problems in the various maladies. Prevent and avoid diseases caused by eating useless. And is nutritious