In this Huberman Lab Essentials episode, my guest is Kyle Gillett, MD, a dual board-certified physician in family medicine and obesity medicine, and an expert in hormone optimization. We discuss science-based tools for optimizing male hormones across the lifespan, including the role of bloodwork, nutrition, and exercise in supporting healthy hormone levels. We also discuss testosterone therapy, hair loss, prostate health, and supplements such as creatine, L-carnitine, Tongkat Ali, and Fadogia agrestis. Read the show notes at hubermanlab.com. Thank you to our sponsors AG1: https://drinkag1.com/huberman LMNT: https://drinklmnt.com/huberman David: https://davidprotein.com/huberman Timestamps (00:00:00) Kyle Gillett (00:00:20) Male Hormone Optimization, Testosterone, Tool: Blood Tests (00:02:17) Diet & Hormone Health, Diary, Vitamin D, Fiber (00:05:36) Caloric Restriction & Testosterone (00:06:44) Lifestyle Pillars: Stress, Life Purpose (00:07:56) Sponsor: LMNT (00:09:28) Exercise & Hormone Health (00:10:32) Testosterone Replacement Therapy (TRT) & Young Adults (00:12:05) Supplements for Testosterone, Creatine & Hair Loss; Betaine, Doses (00:15:50) L-Carnitine, Forms, Dose, TMAO, Garlic & Berberine (00:19:02) Vitamin D, Boron (00:20:43) Tongkat Ali (Longjack) (00:23:34) Sponsor: AG1 (00:24:53) Fadogia Agrestis (00:26:49) Testosterone Therapy, Dose; Side Effects (00:31:24) Clomiphene, SERM & Testosterone (00:33:58) Sponsor: David (00:35:16) Alcohol, Aromatase & Testosterone (00:36:09) Prostate Health & Tadalafil, Nighttime Urination (00:38:10) Hair Loss, Caffeine, Finasteride, Dutasteride (00:40:13) Acknowledgements Disclaimer & Disclosures Learn more about your ad choices. Visit megaphone.fm/adchoices