营销话术证据 C · 证据有限
运动就该补盐片
真相
对大多数运动者常规吞盐片无证据支持、还可能帮倒忙; 钠靠饮食 + 电解质饮料就够, 只有极能出汗的咸汗型高强度人群才需个体化补钠 (NATA 2017)。
机制速览
热天运动有几个老说法站不住。
来源（3）
- McDermott, B. P., Anderson, S. A., Armstrong, L. E., Casa, D. J., Cheuvront, S. N., Cooper, L., Kenney, W. L., O'Connor, F. G., & Roberts, W. O. (2017). National Athletic Trainers' Association position statement: Fluid replacement for the physically active. Journal of Athletic Training, 52(9), 877-895.
- Sawka, M. N., Burke, L. M., Eichner, E. R., Maughan, R. J., Montain, S. J., & Stachenfeld, N. S. (2007). American College of Sports Medicine position stand: Exercise and fluid replacement. Medicine & Science in Sports & Exercise, 39(2), 377-390. Abstract content: drink to prevent excessive dehydration (more than 2% body-weight loss from water deficit) and excessive electrolyte change; sweat rates and sweat electrolyte content vary considerably between individuals, so programmes should be customised, e.g. by weighing before and after exercise. The abstract gives no sweat sodium or potassium figures (abstract, PMID 17277604).
- Racinais, S., Alonso, J. M., Coutts, A. J., et al. (2015). Consensus recommendations on training and competing in the heat. British Journal of Sports Medicine, 49(18), 1164-1173.