KATHMANDU, Dec 23: Food plays a big role in our life because we need food to live. In addition, it affects the shape of our body and helps us grow into an adult. Unfortunately, not all foods are good for health. Such food is known as junk food. For the past many years, junk food has been a part of our life. Whenever we are hungry, we want to have a quick, easy meal. We prefer junk food. It is very delicious. It is easy to eat too. We live in a very competitive society. Time is gold. Therefore, we eat junk food for saving time. This way chips, cheese ball, pizza, hamburgers, soda, fried chicken, oily food etc have replaced the nutritious food in our diet.