Why are junk foods JUNK? Science Education for the Early Grades › Forums › Volume Two › Learning Progression “A”: NATURE OF MATTER › Lesson A-14. Concepts of Chemistry I: Elements and Compounds › Why are junk foods JUNK? This topic has 0 replies, 1 voice, and was last updated 1 year, 10 months ago by Bernard Nebel. Viewing 0 reply threads Author Posts August 13, 2018 at 8:19 pm #7146 Bernard NebelKeymaster Junk foods are those foods consisting mostly of sugars, fats, and/or carbohydrates. They are high in calories, hence may provide a burst of quick energy, but they are totally or nearly devoid of essential nutrients as described in more detail here. https://food.ndtv.com/food-drinks/what-is-junk-food-why-is-it-bad-for-you-1772375 Author Posts Viewing 0 reply threads You must be logged in to reply to this topic.