I am looking for substances / supplements can elevate the secretion of IGF-1. For now I read that ornithine, arginine, glycine, betaine and agmatine are able to raise the levels of IGF-1.
You know other substances or supplements can significantly raise the levels of IGF-1?
Among the substances listed above which is the best?
Any help is welcome
You know other substances or supplements can significantly raise the levels of IGF-1?
Among the substances listed above which is the best?
Any help is welcome