A few examples of foods often considered to be junk food include fast food, sweets such as ice cream, candy, debbie cakes, donuts, pre packaged treats, soda, and potato chips, among many others. Most people have no trouble pinpointing junk food; it is when they want to stop eating junk food that the trouble starts. The first effect of eating junk food is its impact on energy levels. The junk food causes energy levels to shoot up, which people like, but then energy levels will quickly crash, sending one back into the kitchen for another quick snack. In addition, junk food can cause moodiness, and make it difficult to get enough sleep at night, so energy levels are never restored to normal. Which means yes you will find yourself repeatedly looking for quick snacks throughout that night.
Junk food doesn't contain the nutrients your body needs to stay healthy. As a result, you may feel chronically fatigued leaving your body weak with the lack energy you need to complete daily tasks. The high levels of sugar in junk food puts your metabolism under stress; when you eat refined sugar, your pancreas secretes high amounts of insulin to prevent a dangerous spike in blood sugar levels.