Elite Athletes and Weight Worries - GLP-1 Debates and RED-s Warnings

Elite Athletes and Weight Worries - GLP-1 Debates and RED-s Warnings

Author: Professor Ross Tucker and Mike Finch December 10, 2025 Duration: 1:11:56

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Show notes


Today, we focus on three news pieces from last week that reminded us of other stories we covered during 2025. The first two concern weight loss and management in elite sport, beginning with a look at the GLP-1 agonist issue (28:27). This was triggered by reports in the UK advising people that they must continue to exercise, specifically weight train, in order to combat the loss of lean mass that has been observed on the drug, which some have equated with aging a decade. Elite sport, meanwhile, will have to consider whether to ban such drugs as potentially performance-enhancing or harmful.


On the subject of harm, we stay on weight issues to discuss RED-s (40:10), in the light of a remarkable and candid announcement by elite cyclist Veronica Ewers that she's taking time away from the sport to address issues that she explains go back over a decade. Her story highlights all the traps - control and thoughtfulness about discipline, obsession over measurement and gadgets, disordered eating, intense training, positive validation in competitive environments, the remarkable ability of the body to tolerate this punishment, but ultimately, the sacrifice of health in a misplaced pursuit of performance. We talk about the lessons we can all learn, thinking back to Pauline Ferrand-Prevot's victory in the TDFF, which was a success story for weight periodization.


We also cover precocious talent, after a three-year old Indian prodigy earned a chess ranking (1:00:40). That reminded us of Malcolm Gladwell's "compression of adolescence" concept, and we talk about the inefficiencies sport accepts in its pursuit of the next champion, highlighted numerous times this year, with the realization that the system is broken and won't be fixed unless there is a collective will be fix it.


Also in this show, a more light-hearted look at the Football and Rugby World Cup draws (2:54) has us bemoaning the dilution of quality and the dearth of competitive matches early in those tournaments. And we chat about a super-fast Valencia marathon (10:43), that threw up fast winning times and nine national records, leading to a chat about globalization of the sport, the dominance of African runners, the slowest marathon nations (with some reasons), and the density of men's and women's top performers.


Plus Gareth remembers that Curacao is both a drink and World Cup finalist, and Ross defends Ghana's football honour!


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Ever wondered what actually happens inside an athlete's body during a marathon, or whether the latest training trend is backed by evidence? The Real Science of Sport Podcast cuts through the noise with a unique blend of academic rigor and frontline reporting. Professor Ross Tucker, a world-renowned sports scientist, and veteran journalist Mike Finch form an engaging partnership, dissecting everything from athletics and rugby to soccer and cycling. Each episode feels like a deep, insightful conversation where complex research is translated into understandable takeaways, myths are debunked, and heated controversies are examined from all angles. You’ll hear them analyze the latest studies, extract practical lessons from professional athletes and coaches, and speak directly with leading global experts in exclusive interviews. This isn't just sports talk; it's a thoughtful exploration of the mechanisms, psychology, and culture behind performance and competition. For anyone with a curious mind and a passion for sport, this podcast offers a consistently fascinating look at the real stories behind the headlines and the physiology beneath the jersey.
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