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Nutrition

Air Travel Alcohol Caffeine Hydration

Air travel alcohol caffeine hydration limits inflight drinks, times caffeine early, and adds extra water—both agents worsen dehydration and sleep on red-eyes.

Air travel alcohol caffeine hydration balances modest caffeine with extra water and limits inflight cocktails—alcohol is diuretic and worsens sleep on red-eyes; caffeine timing should finish six to eight hours before target sleep in the arrival zone. One drink may be fine with double fluid compensation, not a hydration strategy.

Common questions

  • Does a beer on the plane matter for hydration?

    One drink with extra water may be acceptable for some; alcohol still disrupts sleep and fluid balance on long flights. Stack drinks and dehydration amplifies jet lag feel.

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