Episode 17 : Anemia: The Silent Performance Killer in Athletes (And How to Beat It) 🩸

Episode 17 : Anemia: The Silent Performance Killer in Athletes (And How to Beat It) 🩸💬 Got a question or feedback? Write us at: [email protected]☕ Buy a Gel Caf for Lactate to support the work:⁠ https://ko-fi.com/lactate⁠⁠⁠⁠Summary: Up to 35% of female athletes and 11% of males suffer from a deficiency that acts as an invisible anchor, potentially cutting performance by 2-20% even without clinical anemia. It is not just about oxygen transport via hemoglobin; iron is the ignition switch for your mitochondria to produce ATP, meaning low ferritin impairs cellular energy even if oxygen delivery is normal. The real enemy is hepcidin, a hormone triggered by inflammation (IL-6) that peaks 3-6 hours post-exercise, locking the cellular doors to iron absorption precisely when you try to recover. Stop wasting supplements during this "hepcidin block"; time your intake for morning rest periods or at least 6-8 hours post-session, aiming for a ferritin target of >40-50 ng/mL rather than the generic laboratory "normal." Adopt alternate-day dosing or pair 100 mg of elemental iron with Vitamin C to bypass the blockade and boost non-heme absorption by up to 67%; Paula Radcliffe’s 2004 Athens collapse illustrates how this physiological failure can seize the engine under heat and stress.Keywords: iron deficiency, anemia, hepcidin, endurance, hemoglobin, ferritin, vo₂max, mitochondria, red-s, running economy🎙️ Lactate, the podcast that deciphers science to improve your performance.Key references :Burden, R. J., Morton, K., Richards, T., Whyte, G. P., & Pedlar, C. R. (2015). Is iron treatment beneficial in, iron-deficient but non-anemic (IDNA) endurance athletes? A systematic review and meta-analysis. British Journal of Sports Medicine, 49(21), 1389-1397. https://doi.org/10.1136/bjsports-2014-093624Clénin, G., Cordes, M., Huber, A., Schumacher, Y. O., Noack, P., Scales, J., & Kriemler, S. (2015). Iron deficiency in sports - definition, influence on performance and therapy. Swiss Medical Weekly, 145, w14196. https://doi.org/10.4414/smw.2015.14196McKay, A. K., Peeling, P., Pyne, D. B., Tee, N., & Leckey, J. J. (2024). The effects of iron deficiency and iron supplementation on sports performance in high-level female athletes: A systematic review. Journal of Science and Medicine in Sport, 27(7), 405-415. https://doi.org/10.1016/j.jsams.2024.03.003Peeling, P., Sim, M., Badenhorst, C. E., Dawson, B., Govus, A. D., Abbiss, C. R.,... & Swinkels, D. W. (2019). The effects of exercise on hepcidin: a systematic review and meta-analysis. Sports Medicine, 49(5), 717-727. https://doi.org/10.1007/s40279-019-01108-2Sim, M., Garvican-Lewis, L. A., Cox, G. R., Govus, A., McKay, A. K., Stellingwerff, T., & Peeling, P. (2019). Iron considerations for the athlete: a narrative review. European Journal of Applied Physiology, 119(7), 1463-1478. https://doi.org/10.1007/s00421-019-04157-yWoods, A., Garvican-Lewis, L. A., Saunders, P. U., Lovell, G., & Peeling, P. (2024). Effect of intravenous iron therapy on exercise performance, fatigue scores and mood states in iron-deficient recreationally active females of reproductive age: a double-blind, randomised control trial (IRONWOMAN Trial). British Journal of Sports Medicine, 59(13), 921-928. http://dx.doi.org/10.1136/bjsm-2023-107769 Voices generated by artificial intelligence from the scientific report produced by the Lactate team.