A rich diet does lead to earlier puberty but to my knowledge it does not student the adolescent growth spurt. Early pregnancy, before reaching adult height, does slow or stop growth.
Sometime when I was in my mid-twenties I noticed, "Hey, even I don't go into too many art galleries. Why? Because I don't like the vibe in them. If even I'm not going into galleries, then who goes into art galleries in the first place?" It's just a certain, very narrow percentage of the population.