The TriDoc Podcast, triathlon and health in one place · Dr. Jeff Sankoff

Ep. 171: Sugar, Sweat, and Science: Debunking the Myths of Carbohydrate Fuels in Endurance Sports & Navigating the Triathlon Journey with Trivelo Coaching

·1 hr 7 min·4 clips

Athletic activity is described as a major protective factor against type 2 diabetes.

Jeff Sankoff sets the tone with a triathlon reality check many athletes already know. Holding a steady power range outside is tough. Gerard Donnelly and Jordy Donnelly join from TriVelo Coaching in Australia. They also host the podcast Train Smarter, Race Faster. The conversation begins with coaching philosophy. It stays focused on how athletes learn, adapt, and improve in practice. The Donnellys talk about coaching beginners. They also get into what it takes to work with athletes at the far end of the performance spectrum. That range gives the episode its shape. It is less about tidy slogans and more about the daily work of helping different athletes solve different problems. The fueling discussion turns to carbohydrate balance and the risk of chasing issues that may not actually be there. A simple analogy lands well. Not every small reaction on a test means a real problem needs to be fixed. False positives matter. So does the urge to test so often that normal variation starts to look like pathology. The episode keeps returning to context. A single number is not the whole picture. It also keeps the athlete in view. The goal is not to turn training into a medicalized guessing game. Instead, the conversation asks what is actually useful. That stays the standard for the whole conversation. Jeff Sankoff stays in his lane as an emergency physician and triathlete. He uses that perspective to make the evidence talk feel grounded rather than abstract. Gerard and Jordy match that tone. They sound like coaches who have seen enough real athletes to know where easy answers break down. The result is steady and unsentimental. It never tries to sell certainty where the sport rarely offers any. The episode is strongest when it ties physiology to day-to-day decisions. Fuel enough, but do not chase a phantom problem. The coaching sections stay conversational and practical, which gives the discussion room to breathe without losing its direction. Listeners also get the sense of a host and guests speaking from shared triathlon culture instead of a scripted interview. By the end, the episode has done what the show does best. It offers skepticism, context, and a few concrete habits worth bringing into training. It leaves the athlete with a plain message. Be careful with your tests, careful with your assumptions, and careful about turning one data point into a conclusion.

As heard by us

A steady take on fueling and coaching that stays practical.

The TriDoc Podcast uses this episode to work through the carbohydrate-fuel debate while leaving room for the practical demands of coaching athletes from beginners to pros.

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Why you'd press play

Press play for a blunt, useful look at fueling myths and coaching reality.

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