JUNK FOOD

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, fats and cholesterol that do not provide any useful energy. As a result, somebody consuming junk food has reduced level of essential nutrients thereby causing weakness in the body.

Poor Concentration:

One disadvantage of consuming junk food is that it contains high amount of oil and fat. As a result, human body finds this food difficult to digest and needs to spend high amount of blood and enzymes. When a person consumes junk food in excess, a major portion of blood in the body is diverted to the intestine. As a result, the person feels drowsy and suffers with reduced concentration.

Heart Diseases:

Junk foods have been identified as a major cause of heart diseases including myocardial infraction, cardiac arrest and atherosclerosis. This is due to the fact that junk food contains excessive amount of low-density lipoproteins and cholesterol that get deposited on the inner linings of blood vessels. This result in formation of plaques and the heart is required to put an extra effort for pumping blood through the arteries. Presence of fat in the blood also causes reduced oxygen levels. Another harmful factor present in junk foods is excess concentration of sugars and salt. Excessive concentration of sodium ions causes an increased heart blood pressure.

Liver Failure:

Even liver gets damaged due to presence of ingredients such as fat, cholesterol and salt inside the junk foods.

You may eat fast food because it's cheap, because its easy or because it tastes good, but the cause isn't as dire as the effects. According to the National Institutes of Health, or NIH, eating fast-food meals 2 or more times each week can threaten your weight and your health. While an occasional Mexican, Chinese, sub sandwich or burger meal won't wreck your metabolism, making a habit of indulging in high-fat, high-calorie fast foods will.

You do have a choice in what you order, how much you order and how much you finish eating at fast food joints. Foods with high sugar or fat content add the most calories to your daily totals, and many selections have large proportions of sugar and/or fat. According to the USDA, high-sugar fast foods include regular carbonated beverages, and high-fat foods include entrees from tacos to burgers to breakfast sandwiches. Fried fruit pies and milk shakes are examples of foods with ingredients high in both detrimental fat and sugar. In addition, many fast foods contain excessive sodium and cholesterol, which can harm your health.