Growth plates generally stop naturally growing by the end of puberty, but don't completely close until later years. According to Dr. Vinod, plates for the tibia and femur close by 18-20 years of age. Most bones in the spine fuse by 25-30 years of age. Growth plates can elongate bones until they close.
Growth plates make new bone in response to hormones. Growth Hormone is the main hormone responsible for growth, and IGF-1 is its primary mediator in directly binding and stimulating growth of bones. Increasing Growth Hormone or IGF-1 stimulates increased bone elongation. For people aged 16-25 years old, normal bone growth occurs during sleep, and normal Growth Hormone levels during sleep are 46% more than when awake.There are, however, ways to further increase Growth Hormone and IGF-1. The best way is to use Growth Hormone injections. It takes 126 IU of Growth Hormone injections for 1 inch of new height over 3 months, which costs $3000. Listed below are other inexpensive and scientifically proven ways of increasing Growth Hormone in the body, but most of them only increase it temporarily and probably not as much as the injections. It should be noted that although amino acids raise Growth Hormone, their effectiveness fades after repeated use. In contrast, effects of Ibutamoren don't tend to fade with repeated use.
Eating 500 milligrams of L-Dopa increases Growth Hormone in the body by 1000% (ten times the normal amount) temporarily.
Eating 5 grams of GABA increases Growth Hormone in the body by 525% temporarily, and eating 3 grams raises Growth Hormone in the body by 400% temporarily.
Eating 2 grams of Glutamine increases Growth Hormone in the body by 400% temporarily.
Eating 9 grams of Arginine increases Growth Hormone in the body by 220% temporarily.
Eating 25 milligrams of Ibutamoren daily for 2 weeks increases 24-hour Growth Hormone levels by 97%.
Eating 20 grams of Creatine increases Growth Hormone in the body by 83% temporarily.
Eating 25 milligrams of Ibutamoren daily for two months increases IGF-1 in the body by 40%.
Eating 25 milligrams of Ibutamoren daily for one year increases IGF-1 in the body by about 20% throughout the year on average.
Eating 36 grams of Casein daily for a week increases IGF-1 in the body by 15%.
Drinking 3 glasses of milk daily increases IGF-1 in the body by 10% and also slightly improves its bioavailability.
If I was a teenager at this moment and noticed that I stopped growing but still wanted to grow taller, I would ingest 25 milligrams of Ibutamoren daily for 3 months (this is for 1 inch of new height; if this went successful, I would keep taking Ibutamoren to see how tall I could grow). Why? Because apparently it produces as much Growth Hormone as injections. It takes 126 IU of injections to grow 1 inch taller over 3 months, which means about 1.4 IU per day. Adolescents naturally use 700 µg (2.1 IU) of Growth Hormone per day, so an adolescent taking Growth Hormone injections would use 3.5 IU of Growth Hormone per day. Eating 25 milligrams of Ibutamoren daily for 2 weeks increases 24-hour Growth Hormone levels by 97%, which means the eater would be producing about 4.14 IU of Growth Hormone per day (compared to the calculated 3.5 IU per day with injections). Taking it over a period of 3 months wouldn't decrease its effectiveness because Ibutamoren's effects do not tend to decrease with repeated use.