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Does drinking coffee dehydrate you?

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English: Does drinking coffee dehydrate you?

  1. Does that morning cup of coffee actually steal water from your body?
  2. Researchers gave volunteers a liter of coffee and measured urine output for four hours.
  3. The urine volume was no different from the water control – coffee didn’t increase diuresis.
  4. A 2001 sports‑medicine review found no evidence that caffeine before exercise causes dehydration or electrolyte loss.
  5. Another review of caffeine’s safety echoed that finding – it doesn’t lead to significant fluid loss at rest or during activity.
  6. So the myth? "Coffee dehydrates".
  7. Bottom line: a regular cup counts toward your daily fluid needs, just like water.
  8. If you have a medical condition that limits caffeine, check with your doctor, but hydration isn’t a concern.
  9. Follow for a medical fact every day.

Italiano: Bere caffè ti disidrata?

Machine-assisted translation of the English script. Please tell us about any mistakes.

  1. Quella tazza di caffè del mattino ti ruba davvero acqua dal corpo?
  2. I ricercatori hanno dato ai volontari un litro di caffè e misurato la produzione di urina per quattro ore.
  3. Il volume di urina non era diverso da quello del controllo con acqua: il caffè non ha aumentato la diuresi.
  4. Una revisione di medicina dello sport del 2001 non ha trovato prove che la caffeina prima dell'esercizio causi disidratazione o perdita di elettroliti.
  5. Un'altra revisione sulla sicurezza della caffeina ha confermato questa conclusione: non porta a una perdita significativa di liquidi a riposo o durante l'attività.
  6. Quindi il mito? "Il caffè disidrata".
  7. In sintesi: una tazza normale conta per il fabbisogno quotidiano di liquidi, proprio come l'acqua.
  8. Se hai una condizione medica che limita la caffeina, parlane con il tuo medico, ma l'idratazione non è un problema.
  9. Seguimi per un fatto medico ogni giorno.

हिन्दी: क्या कॉफ़ी पीने से शरीर में पानी की कमी होती है?

Machine-assisted translation of the English script. Please tell us about any mistakes.

  1. क्या सुबह की वह एक कप कॉफ़ी सचमुच आपके शरीर से पानी चुराती है?
  2. शोधकर्ताओं ने स्वयंसेवकों को एक लीटर कॉफ़ी दी और चार घंटे तक पेशाब की मात्रा नापी।
  3. पेशाब की मात्रा पानी वाले नियंत्रण समूह से कोई अलग नहीं थी – कॉफ़ी ने पेशाब के उत्पादन को नहीं बढ़ाया।
  4. 2001 की एक खेल-चिकित्सा समीक्षा में ऐसा कोई सबूत नहीं मिला कि व्यायाम से पहले कैफीन लेने से निर्जलीकरण या इलेक्ट्रोलाइट की हानि होती है।
  5. कैफीन की सुरक्षा पर एक अन्य समीक्षा ने भी यही पाया – आराम के समय या गतिविधि के दौरान इससे तरल पदार्थ की कोई बड़ी हानि नहीं होती।
  6. तो वह भ्रांति क्या है? “कॉफ़ी से निर्जलीकरण होता है”।
  7. मुख्य बात: एक सामान्य कप आपकी रोज़ की तरल ज़रूरतों में पानी की तरह ही गिना जाता है।
  8. अगर आपको कोई ऐसी चिकित्सीय स्थिति है जो कैफीन को सीमित करती है, तो अपने डॉक्टर से सलाह लें, लेकिन हाइड्रेशन को लेकर चिंता नहीं है।
  9. रोज़ एक मेडिकल तथ्य के लिए फॉलो करें।

Where the facts come from

  1. A randomized trial to assess the potential of different beverages to affect hydration status: development of a beverage hydration index. (The American
    Supports: Urine output after coffee is similar to water, showing no extra diuresis.
  2. Caffeine and exercise: metabolism, endurance and performance. (Sports medicine (Auckland, N.Z.) 2001)
    Supports: Caffeine does not cause dehydration or electrolyte imbalance during exercise.
  3. Caffeine and exercise. (Current sports medicine reports 2003)
    Supports: Caffeine is safe and does not lead to significant dehydration at rest.