While intermittent fasting can increase growth hormone levels, it has detrimental effects on the genetic pathways and receptors for growth hormone. The best way to determine whether a supplement is impacting hormone levels is through a blood test.
Lengthier fasts or intermittent fasting can increase growth hormone levels, but it has detrimental effects on genetic pathways and receptors for growth hormone. Extended fasting specifically for the purpose of increasing growth hormone is not logical when looking at the broader effects of extended fasts, but avoiding food two hours prior to bedtime can significantly boost growth hormone in sleep.
Some supplements can boost hormone production in the body by stimulating the release of luteinizing hormone (or LH). One such supplement is phytoestrogenic herb, phytogea agrestis.
Dr. Gillette explains how to get a hormone panel and the importance of blood tests in evaluating the impact of supplements on hormones for both the short and long-term.