Episode 9 : Vegan vs. Carnivore: What the Science Actually Says (And It's Not What You Think) 🌱

Episode 9 : Vegan vs. Carnivore: What the Science Actually Says (And It's Not What You Think) 🌱💬 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: This isn't "plants vs. meat"; it's a battle of "evidence vs. anecdote." We cut through the polarized debate to reveal the massive asymmetry in scientific validation. High-level meta-analyses show well-planned vegan diets may offer a "moderate but positive effect on aerobic performance," driven by a synergy of mechanisms: enhanced blood flow via nitrate-to-nitric-oxide conversion (vasodilation), superior glycogen saturation from higher habitual carb intake, and reduced inflammation via massive antioxidant loads. Conversely, the carnivore diet exists in a performance "scientific vacuum"—a case study even showed increased physiological stress (higher heart rate), and analyses confirm it's deficient in key micronutrients like Vitamin C and magnesium, while being void of fiber. Success isn't the label; it's the execution. Vegan athletes must use a "nutrient insurance" protocol: mandatory B12 supplementation, pairing non-heme iron with Vitamin C, and combining protein sources (like rice and beans) to hit the leucine threshold. For carnivore-curious athletes, the only science-backed approach is a "strategic carb" model—using a low-carb baseline but fueling high-intensity efforts and races with 30–90 g of carbs per hour. Zach Bitter's 100-mile record wasn't a pure carnivore victory; he confirms using carbohydrates as "rocket fuel" for his peak performance.Keywords: vegan, carnivore, endurance, sports nutrition, physiology, evidence-based, metabolic flexibility, glycogen, plant-based🎙️ Lactate, the podcast that deciphers science to improve your performance.Key references : Damasceno, Y., Leitão, C., de Oliveira, G., de Lima, J., de Carvalho, P., da Silva, D. C. M., & de Lira, C. A. B. (2024). Plant-based diets benefit aerobic performance and do not compromise strength/power performance: a systematic review and meta-analysis. British Journal of Nutrition, 131(5), 829-840. https://doi.org/10.1017/s0007114523002258Kramer, S., Carlsohn, A., & Baur, S. (2021). The impact of vegan and vegetarian diets on physical performance and molecular signaling in skeletal muscle. Current Research in Physiology, 4, 283-291. https://doi.org/10.1016/j.crphys.2021.10.003O'Hearn, A. (2024). Can a carnivore diet provide all essential nutrients? Frontiers in Nutrition, 11. https://doi.org/10.3389/fnut.2024.11722875O'Malley, M., O'Malley, T., & Williams, C. (2024). The impact of the carnivore diet on athletic performance: a case study. Journal of Exercise and Nutrition, 7(2). https://www.journalofexerciseandnutrition.com/index.php/JEN/article/view/173Rogerson, D. (2017). Vegan diets: practical advice for athletes and active individuals. Journal of the International Society of Sports Nutrition, 14(1), 36. https://doi.org/10.1186/s12970-017-0192-9Tso, R., & Forde, C. G. (2023). Nutritional considerations for the vegan athlete. Current Opinion in Clinical Nutrition and Metabolic Care, 26(4), 363-370. https://doi.org/10.1097/mco.0000000000000927Voices generated by artificial intelligence from the scientific report produced by the Lactate team.