#Ketones drink plus
Deceuninck-QuickStep added further possible ketonic support with three stage wins plus Julian Alaphilippe's 14 days in the yellow jersey. That purported preservation of carbs received a marketing boost from Jumbo-Visma as not only did Steven Kruijswijk finish third, but the Dutch team also won four stages of last year's Tour: the team time trial, plus individual victories for Mike Teunissen, Dylan Groenewegen and Wout Van Aert. The same, according to many, isn't true for ketones that aren't produced by the body, the idea being that by orally consuming ketones, you'll spare precious glycogen reserves for intense efforts like climbing a hill or sprinting to the line. That's important for survival but not necessarily tuned into high performance. Ketones are an energy source produced by the liver during fasting or periods of low carbohydrate intake. It was reported that seven teams used them at the 2019 race. The substance is not on the prohibited list, and it's also known that other teams use ketones," he said. "Ketones are a dietary supplement – you can use them just like vitamins. Unlike Jumbo-Visma managing director Richard Plugge's interview with De Telegraaf halfway through the Tour, where he confirmed that ketone use is widespread among Tour riders. Jumbo go publicįew journalists attend the Science and Cycling Conference, so Hespel's revelation echoed briefly and quietly in the small academic chamber of VU Brussels University. It's carved a reputation as the nutritional omertà, a fuelling Macbeth never uttered by the sporting actors.
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The answer seems obvious but there's no confirmation – and with it, Hespel's raising of the eyebrows encapsulates the mysterious air around the wonder supplement that's drifted over the peloton for years.Įvery Tour, one news organisation or another insinuates that ketones complement energy gels and rice cakes in a rider's larder every year, teams refuse to confirm or deny either its use or benefits.
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We ask if Deceuninck are using them at the Tour de France. "From our research, ketones can improve the performance of Grand Tour riders," Hespel continues. Teams divided over use and risks of ketones at Tour de Franceĭe Plus: Ketones taste like gin and tonic