Occasionally treating yourself to some junk food is fine, but eating too much on a daily basis can have some scary side effects. Studies have shown that people who have an ultra-processed diet consume 500 more calories a day. Eating too many processed foods can have a significant impact on your mood. This is because 90% of your serotonin receptors are located in your gut. Junk food is almost always very high in sugar or salt, which can cause major cardiovascular issues if eaten excessively. Eating junk food on a daily basis can aggravate your skin and cause breakouts. Processed foods do not provide any nutritional substance, meaning you will quickly become hungry again. Junk food has also been found to disrupt the function of hormones such as leptin and ghrelin. This results in your body not being able to regulate its weight and metabolism efficiently. Processed foods are often low in fiber, which is necessary for keeping your digestive system healthy.