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• Randomized crossover trial Date verified

  Getting behind on fluid quietly cuts how much of your fuel you actually burn

  Trained cyclists who finished a 160 minute ride 2.8% of body mass down oxidized about 16% less of the glucose they drank than when fully hydrated, with no change in gut comfort or gut barrier stress markers.

  Journal of Applied Physiology · Macrae et al. · 1 August 2026 · PMID 42420769

  hydrationcarbohydrateendurance-fuelingGI-distress
• Randomized double blind crossover Published 16 Jun 2026, not 1 Aug 2026. The August date is the print issue date. Cite the June date.

  A higher fructose drink did not worsen kidney injury markers under heat and work stress

  In a double blind crossover of 12 healthy adults doing four hours of simulated occupational heat stress, a 55% fructose sports drink and a matched sucrose drink produced the same rise in a kidney stress marker. A useful null on the fructose side of multi carbohydrate fueling, from a June paper.

  American Journal of Physiology · Tourula et al. · 16 June 2026 · PMID 42302737

  carbohydratehydrationendurance-fueling