Here is the problem, it lowers igf1 and test levels...I was running 1.5ius of gh at night and 25mcg's igf1 after training....had bloodwork done...my igf1 came in at 323ng/ml....I was running 300mg of test, my total test came in at 1935ng/dl and my free at 518.6 pg/ml..
I was happy with the numbers but figured I could ramp them up a bit, started taking 2iu's of gh, 50mcg's igf1 after training AND 500mg metformin twice a day...got bloodwork done after 8 weeks...igf1 dropped to 184, Total test to 1584 and free to 481....so metformin does have an effect on igf1, total and free test