Growth supplements to make up for lost ground during puberty?

Your desire to try to make up for the "lost ground" is understandable. However, no scientific research backs the idea that one can physically grow substantially taller after the completion of puberty by altering what one eats. Also, there's a good chance that your eating plan (depending upon how strict a vegetarian you were) during your teenage years probably did not inhibit your height growth, especially if you ate and drank dairy products, beans, and nuts, which would have allowed you to have gotten your share of protein.