Sports Drinks vs Water

Sports drinks typically supply carbohydrate (~6–8% solution, ~14 g per 8 oz) plus electrolytes (mainly sodium and potassium). Their value is situational:

• Exercise under ~60 minutes: plain water is the appropriate, inexpensive choice; you have ample glycogen and lose little electrolyte, so the added sugar is unnecessary calories (see fluid-needs).
• Exercise over ~60–90 minutes, intense, or in heat: a sports drink helps by delivering carbohydrate to spare glycogen (see endurance-fueling) and sodium to aid fluid retention and palatability (see electrolytes), encouraging adequate drinking. The glucose and sodium also speed water absorption in the small intestine.

Distinguish product types: sports drinks (carbs + electrolytes, for fueling/hydration during endurance), electrolyte-only mixes (sodium without much sugar, for heavy sweaters managing hyponatremia risk — see exercise-hydration-strategy), and energy drinks (high caffeine and sugar — a stimulant product, not a hydration aid). For everyday hydration and short sessions, sports drinks are just sugar-sweetened beverages that add calories (see added-sugars); reserve them for when their carbohydrate and sodium actually serve performance.

• Sports drinks: ~6–8% carbohydrate (~14 g/8 oz) plus sodium/potassium.
• <60 min: water is the right choice; sports-drink sugar is unneeded.

• 60–90 min / intense / hot: carbs + sodium aid fueling, retention, and absorption.

• Sports drinks ≠ electrolyte-only mixes ≠ caffeinated energy drinks.
• For daily/short use, sports drinks are just sugary beverages (extra calories).

• hydration / fluid-needs — baseline hydration.
• exercise-hydration-strategy — when carbs/sodium matter.
• endurance-fueling — carbohydrate during long efforts.
• added-sugars — sports drinks as discretionary sugar otherwise.