These days junk foods are more popular than normal foods and healthy foods because the reason is or could be lack of information.Most of us know about the junk foods disadvantages but still, we ignore it because we don't know why it is not good and how it is going to have a bad impact on our health.
Few other reasons behind making junk foods famous:-
You can quickly cook.
Easily available around you.
Most of the junk foods are packed and is ready to eat state i.e chips, cookies, chocs packed snacks etc..
Having junk food once or twice in a month is fine but we should not at all give junk food as the first priority.
Find more information on junk foods and highly restricted foods.