Answer:
Step-by-step explanation:
Is this ever a good question. Everyone knows what junk food is, practically no one could define it if you put them on the spot.
The dictionary I looked at said junk food (the very name should give you a huge hint) came as food that is very low in nutritional value, packaged, with almost no preparation needed. The most important of these 3 attributes is the lack of nutritional value.
The primary cause of obesity is the lack of nutritional value. The body soon begins to crave what it is not getting and since there is very little nutritional value, much has to be eaten before the craving stops. Junk food is wonderful once in a very great while, but it is dangerous if that is all that is in your diet.