Here are some Junk Food Facts that help you understand the harmful effects of eating them.
Lack of energy:
Junk foods do not contain any nutrients that are beneficial to the human body. In most cases, these foods are filled with harmful carbohydrates, cholesterol and fats that do not provide any useful energy.
Junk food contains high amount of fat and oil. When you have a sumptuous junk meal rich in oil you feel drowsy and fail to concentrate. Over sustained periods of junk food eating, blood circulation drops due to fat accumulation. Lack of vital oxygen, nutrients and proteins particularly can stale your Grey (brain) cells temporarily.
Junk food diet is a major cause of heart diseases. Myocardial infarction (a severe heart failure) is due to plaque formation in arteries which demands heart to put in extra effort to pump blood on the downstream. On the upstream, there is lack of returning blood to heart. This causes two damages to heart - heart fatigues by the continuous extra effort it makes and it suffers oxygen supply.
Even liver gets damaged due to presence of ingredients such as fat, cholesterol and salt inside the junk foods.
Junk foods also cause damage to the pancreas resulting in insulin-dependent diabetes mellitus (IDDM).