Disclaimer: This is for the purpose of education only. Don’t try to self supplement or self medicate.
What is IGF-1?
IGF-1 is the main mediator of the trophic effects of growth hormone (GH).
GH response to aging is to decrease. So, similarly, IGF-I decreases with age.
70% of IGF-I is produced in the liver. There are different isomeric forms of IGF-I, depending on what the body needs, thus production stimulated by different things, exercise, starvation, …