What to eat to grow taller? Could you tell me some foods or supplements to increase growth hormone levels?

Unlikely to happen. You are most likely to reach your tallest potential height by following a healthy diet, getting appropriate sleep and remaining physically active.Nothing you eat or drink will add inches.You can stunt your growth by the opposite, poor diet/sleep/inactivity can all take a toll.If the growth centers in your bones are open you may grow taller, but at 18 they may be closed, with growth ended.