harmful effects of junk food on the body (on human health)

Fast food and junk food are not the same thing. FAST FOOD is what you can buy ready-made at a place like McDonalds or at a drive-thru window. JUNK FOOD is chocolate, chips, candy, ice-cream, cookies, twinkies, etc.

Yeah, you're right. I haven't thought about this nuance.Thank you, Uly!

My pleasure :-)