Does your kids love to eat junk foods? They really love it, even adults like it also. What food should be considered as junk? Is it bad for our health? Junk food refers to food that have high calorie contents but little nutritional value. They are generally high in fat, high in sugar and low in fiber. another problem with junk foods is that they low in satiation value, which means that people do not feel as full when they eat them. have you noticed it? This is in turn could lead to overeating, and later on result to obesity. they also replace other nutritious foods in a person's diet. So better not to offer or buy any junk foods for your child instead serve them with fruits or vegetables which are good for health.