I'm a15 y/o guy &5'4. How can I grow at least to 5'7?!

Two things determine your height. Those two things are your genetics, which you can do nothing about, and your diet. Quite simply if you want to attain you maximum genetically determined height you have to eat enough of a well balanced diet. Oh and keeping fit won't hurt either!

I dunno I'm 5.11 and like i never had a problem with my height. I think a good healthy diet full of greens, some streching exercises and swimming could do justice to your height. You still have like 3 to 4 years left to grow so make sure you fat healthy and exercise.

Eat better (less snacks more veggies and meat) sleep better average 8-9 h you might grow a few inches in I'm don't know 2-3 months

Me I'm smarter than u think I'm 13 I got the brains

I'm 17 and i'm 6'3 i eat alot of foods high in protein and sleep 7-9 hours a day, try to increase your calcium intake as well.

When I was 15 I was 5'1 now I'm 18 5'7.. but I started puberty at 15 so you might not grow the same way but you should definetly grow 3 more inches