Ketones are produced by the liver once there are no carbohydrates to burn, and fat stores begin to burn. Synthetic ketone supplements, used in conjunction with a low-carb diet, are thought to provide an added energy source that helps preserve glycogen storage, reduce lactic acid and aid in recovery.
A recent study out of the University of Leuven in Belgium links ketone supplements to a 15 per cent increase in performance for endurance athletes. According to De Telegraaf, Professor Peter Hespel had 16 subjects ride a mini Tour de France while ingesting ketones, and later said that the substance had an “unprecedented effect on recovery”, but the “performance capacity also increases considerably”.
The use of ketones among the professional peloton has been linked to several WorldTour teams in recent years, dating back to the 2012 Olympic Games in London. It has also been suggested that ketone supplements have been used at the Team Sky and QuickStep teams in previous years.
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