Are Testosterone Levels Declining For Men? (BLA S4E11)

Are Testosterone Levels Declining For Men? (BLA S4E11)

Testosterone is a hot topic on social media these days, and you won't have a hard time finding lots so called experts telling you how to quickly fix your testosterone. However, one specific claim I've seen quite a few times is that testosterone values are declining for males in general, but is that actually the case? In this podcast episode we cover that exact question.

CHAPTERS:

00:00 - Intro

00:28 - The Claims

01:51 - Is this actually real?

03:42 - Proposed mechanisms

07:06 - Fertility

07:50 - How can we explain away the findings?

09:13 - What if this is true?

11:54 - Does this matter?

13:42 - Conclusion

*Disclaimer* This video is for entertainment, education, and informational purposes only. The topics discussed should not solely be used to diagnose, treat , or prevent any condition. The information presented here was created with an evidence based approach, but you please keep in mind that science is always changing and at the time of listening to this there may some new data that makes this information incomplete or inaccurate. Always seek the advice of your personal physician or qualified health care provider for questions regarding any medical condition.

References

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Chodick, G., Epstein, S., & Shalev, V. (2020). Secular trends in testosterone- findings from a large state-mandate care provider. Reproductive Biology and Endocrinology: RB&E, 18(1), 19. https://doi.org/10.1186/s12958-020-00575-2

Gates, M. A., Mekary, R. A., Chiu, G. R., Ding, E. L., Wittert, G. A., & Araujo, A. B. (2013). Sex Steroid Hormone Levels and Body Composition in Men. The Journal of Clinical Endocrinology and Metabolism, 98(6), 2442–2450. https://doi.org/10.1210/jc.2012-2582

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Menke, A., Guallar, E., Rohrmann, S., Nelson, W. G., Rifai, N., Kanarek, N., Feinleib, M., Michos, E. D., Dobs, A., & Platz, E. A. (2010). Sex Steroid Hormone Concentrations and Risk of Death in US Men. American Journal of Epidemiology, 171(5), 583–592. https://doi.org/10.1093/aje/kwp415

Rodprasert, W., Toppari, J., & Virtanen, H. E. (2021). Endocrine Disrupting Chemicals and Reproductive Health in Boys and Men. Frontiers in Endocrinology, 12, 706532. https://doi.org/10.3389/fendo.2021.706532

Travison, T. G., Araujo, A. B., O’Donnell, A. B., Kupelian, V., & McKinlay, J. B. (2007). A population-level decline in serum testosterone levels in American men. The Journal of Clinical Endocrinology and Metabolism, 92(1), 196–202. https://doi.org/10.1210/jc.2006-1375

Whittaker, J. (2023). Dietary trends and the decline in male reproductive health. Hormones (Athens, Greece), 22(2), 165–197. https://doi.org/10.1007/s42000-023-00431-z

Wrzosek, M., Woźniak, J., & Włodarek, D. (2020). The causes of adverse changes of testosterone levels in men. Expert Review of Endocrinology & Metabolism, 15(5), 355–362. https://doi.org/10.1080/17446651.2020.1813020