About this episode
This is a Premium-exclusive episode of the podcast. To listen to the full episode you need to be subscribed to Sigma Nutrition Premium . What exactly are "antioxidants," and why do they get so much hype? We often hear that blueberries, dark chocolate, and red wine are healthy because they're packed with antioxidants – but is the story really as simple as "more antioxidants = better health"? In this episode, Danny explores the true role of antioxidants in the body, challenging simplistic narratives. Are antioxidants magic molecules that single-handedly prevent aging and disease? Or is the reality more nuanced, with context and balance being key? We delve into these intriguing questions to clarify what antioxidants are, how they work, and what the current consensus tells us about using them for health. Antioxidants are frequently credited as the reason why colorful fruits and vegetables are beneficial. Yet, as past Sigma episodes on polyphenols have noted, the benefits of those plant foods aren't primarily due to direct antioxidant effects. Here we untangle common misconceptions (e.g., "antioxidants = health, always"), distinguish between different types of antioxidants, and explain why simply taking high-dose antioxidant supplements isn't a guarantee of protection – and in some cases might even backfire. By the end, health professionals and science-savvy listeners will understand the diverse roles of antioxidants, the importance of balance, and how to apply this knowledge in practice. Timestamps [01:27] Understanding antioxidants [04:19] The role of free radicals [08:43] Endogenous antioxidant systems [09:58] Dietary antioxidants [16:03] Polyphenols and their impact [24:28] Health benefits of polyphenols [27:39] Antioxidants in cognitive function [36:47] Practical takeaways on antioxidants Links & Resources: Subscribe to Sigma Nutrition Premium Go to the episode page Join the Sigma email newsletter for free Become a member of Alan Flanagan's Alinea Nutrition Education Hub Enroll in the next cohort of our Applied Nutrition Literacy course See all our other Recommended Resources Instagram: @sigmanutrition X: @NutritionDanny