CC STUDIO / SCIENCE PHOTO LIBRARY CC STUDIO / SCIENCE PHOTO LIBRARY
Junk food. An adolescent girl eating a waffle. Snacks and "junk" food such as waffles, chips, biscuits and sweets are often considered unhealthy, particularly when eaten in large quantities. They may contain high levels of sugars which can cause dental caries, or saturated fats which, if consumed in excess, can cause obesity and raise the risk of heart disease. Such foods also contain little in the way of vitamins, minerals, protein or fibre. Fibre is necessary for maintaining healthy intestinal function.
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