I have done research for months on growth hormone and insulin-like growth factor-1 (IGF-1). (I feel like I've done enough research to earn an M.D.) IGF-1, as you may know, is the active "height-increasing" agent of growth hormone. Growth hormone stimulates IGF-1 in the liver, but one could also increase IGF-1 without regard to GH secretion.

Here's my list of what stimulates IGF-1. I thought I'd share it and see if you can find anything else to add.

* Growth hormone. Pituitary human growth hormone, needless to say, is the most potent stimulus of IGF-1. No reference here needed.

* Casein. Not surprisingly, dairy protein (casein) increases IGF-1. http://www.ncbi.nlm.nih.gov/pubmed/1596498

* Bovine colostrum. Packed with real bovine IGF-1, identical to human IGF-1. I understand that IGF-1 itself can't be absorbed because of breakdown during digestion, but research (http://joe.endocrinology-journals.org/cg...146/2/215) shows that casein (dairy protein, like cheese) can inhibit IGF-1 from degrading during digestion.

Colostrum is available at supplement stores in capsules. I'd open the capsule and sprinkle some in cottage cheese (casein).

* Zinc. http://www3.interscience.wiley.com/journ...6/abstract
http://cat.inist.fr/?aModele=afficheN&cpsidt=17901232

* Capsaicin. "Plasma levels of IGF-I were significantly increased from baseline levels in 31 volunteers with alopecia at 5 months after oral administration of capsaicin (6 mg/day) and isoflavone (75 mg/day) (p < 0.01), while they were not increased in 17 volunteers with alopecia administered placebo." http://www.sciencedirect.com/science?_ob...3b85b75022

*Testosterone. http://www.annclinlabsci.org/cgi/content...t/25/5/381

*Fluoride. Be aware that it has been proven to kill brain cell. http://www.ncbi.nlm.nih.gov/pubmed/9192519


INHIBITORS OF IGF-1:

This incomplete list is of things that block IGF-1. Blocking IGF-1 is good if you're done growing and an old person. IGF-1 has been proven to grow cancer, but since we're all young here, we have no need to worry about cancer complications of IGF-1.

* Resveratrol. I had been taking resveratrol because it was a natural aromatase inhibitor. I was trying to delay fusion of my growth plates. Little did I know, I was working against myself.

"Resveratrol...reduced insulin-like growth factor-1 (IGF-I) levels"
http://www.nature.com/nature/journal/v44...05354.html

Just do exercises involving legs. That will stimulate hgh

Bullshit gary.

No, Gary is right. Leg exercise does stimulate HGH.

And good article, bababooey.

Any ANAEROBIC exercise.

How does leg exersices help growth in any way?

Heavy anerobic work stimulates the production of anabolic hormones.

Lol nerve you've got some nerve to tell me thats bullshit. Me, willhu, Ironnymagnet, and everybody else know that doing exercises like squats, running, or cycling will increase hgh more and faster than doing bicep or tricep curls for instance. So do your research before you doubt me

Nervlol* and btw idc I do squat, I do HIIT training , but I dont think it helps really that much with growth, its not that important imo.

Wow gary, I must say, I like this change.