Know I'll get flamed for this but YOLO.
I have been living on a regular diet of pop tarts, frozen dinners, Chinese food, Heineken and pizza for the past few years while doing virtually no exercise and never lifting anything over like 5 lbs. Yet look how lean I am. I also do nothing during the day except play video games and drink with friends.
Look at my muscle insertions and waist to hip ratio. Genetic superiority personified.
Now compare my physique with that of an average pleb with poverty genetics who lives a similar lifestyle:
Night and day.