The Glutamine Dipeptide That Kept Shooters Accurate When Water Didn't
Water is the default hydration advice, but a small study of Division I basketball players suggests it may not protect shooting accuracy as well as water with a little L-alanyl-L-glutamine. Ten women played four 40-minute games, and the low dose of 1 g per 500 ml beat water by 11.1% on shooting. The higher dose did not do better on shooting, and jump power didn't change at all. Here are the numbers, the practical takeaways, and the caveats you should weigh before stirring any of it into your bottle.
This Zero-Calorie Rare Sugar Beat a Diet Drink at Rehydration
A zero-calorie rare sugar called allulose just outperformed a sucralose-sweetened electrolyte drink in a randomized, double-blind crossover trial. In 15 healthy men, plasma volume recovery was 28.16% versus 4.13%, and fluid retention reached 91.54% versus 80.55%. Participants also reported a bigger drop in thirst, with no glycemic or temperature downside. But the study is small, funded by an allulose maker, and never tested a regular sugary sports drink. Here is what the numbers show, who might benefit, and who should wait for better evidence.