Both junk food and fast food are much cheaper than healthy foods. In fact, it costs three times as much to have and maintain a healthful diet compared to a junk-filled diet.

It's not unreasonable why people would then choose to eat junk instead of healthy food because the cost is a massic component that most of us cannot afford to overlook.

We cannot deny the fact that junk food is tasty. However, they are high in sodium and sugar, and that's really not good for you.

Junk food can cause digestive problems, skin and weight problems. In excess, it may cause obesity and other related diseases. If junk food is consumed only on occasion in an otherwise healthy diet, it's not likely to have much negative impact on your health.