How do you define "stunt growth to a minor degree"?
Regardless of whether my height is good or not, I still regret that I never reached my maximum potential height.
5'6" sounds like a good height ... I had a tall father [5'9"-something] and a short mother [5'3"]. I ended up topping off at 5'4".
But yes, your eating and sleeping habits can influence your development, especially with the eating. I wouldn't say it stunts growth to a *major* degree, but to a minor one and dealing more with other development, yes. The body needs certain nutrients to be at its best growing up; lack of certain things can cause a person to have such things like cognitive issues [memory for one], digestive issues [an imbalance as an adult], stunted metabolism [makes it hard to change or stimulate it], and other things.
That's more biological though, from poor nutrition, which, yes, depression can lead to. The worst results from depression as a child/teen though, have resounding effects in of course self-esteem, family/friendship relations, etc.
Hope this helps!