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In this episode, I explore testosterone and performance, building on my conversation with Dr. Ben House to take a closer look at how nutrition, metabolic health, and aging affect your hormones. I explain why excess body fat and underfueling can both suppress testosterone, how aggressive dieting differs from a modest calorie deficit, and what research suggests about hormone recovery after refeeding. I examine emerging findings on testosterone and aging, why metabolic health matters, and how total testosterone, free testosterone, and sex hormone-binding globulin (SHBG) can tell different stories. I also discuss the Defense Health Agency’s new testosterone guidelines for male service members, the importance of repeat testing, and what to consider before starting testosterone replacement therapy (TRT), including fertility and ongoing monitoring. We then look at testosterone’s role in muscle growth, why normal hormone levels and brief post-exercise increases do not reliably predict training results, and what androgen receptors can and cannot explain. I also discuss practical considerations for protein intake, anabolic resistance, and strength training as you age. This episode is for anyone who wants to better understand their hormone health and make more informed decisions about nutrition, training, and testosterone.
Sponsors
Momentous: https://livemomentous.com/galpin
David: https://davidprotein.com/perform
LMNT: https://drinklmnt.com/perform
Chapters
(00:00:00) Testosterone & Performance
(00:06:37) Low Testosterone: Lab Results, Symptoms & Obesity
(00:13:31) Underfueling, Calorie Deficits & Low Testosterone
(00:23:05) Testosterone Recovery: Refeeding, Sleep & Stress
(00:30:11) Testosterone & Aging: The Role of Metabolic Health
(00:44:39) New Testosterone Guidelines & Accurate Testing
(00:50:42) TRT: Safety, Fertility, Treatment Targets & Benefits
(01:00:01) Daily Testosterone Rhythms & Testing Time
(01:03:37) Total vs. Free Testosterone: Understanding SHBG
(01:13:12) Does Higher Testosterone Mean More Muscle Growth?
(01:21:46) Androgen Receptors & Individual Training Responses
(01:25:12) Aging, Anabolic Resistance & How Much Protein You Need
(01:34:53) Strength Training With Age & Final Takeaways
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