Dr. Tomah Phillips
  • Home
  • About
    • About Dr. Tomah
    • My Philosophy
    • About Naturopathic Medicine
  • Services
    • Total Health Tennis
    • Conditions >
      • Digestive Disorders >
        • SIBO / IBS >
          • SIBO Questionnaire
      • Sleep Disorders
      • Fatigue & Adrenal Dysfunction
    • Treatments >
      • Diet and Personalized Nutrition
      • Herbal Medicine
      • Acupuncture
    • Naturopathic Lab Testing >
      • Adrenal Stress Test
      • SIBO / IBS Breath Test
      • Comprehensive Digestive Stool Analysis
      • NutriGenomix Genetic Test
      • Vitamin D Testing
  • FAQ
    • What To Expect
    • FAQ
    • Fee Schedule
  • Articles
  • Contact
  • Store

Does Drinking Coffee Really Make You Dehydrated?

9/12/2018

0 Comments

 
It is commonly thought that drinking coffee makes you more dehydrated, but does the evidence support this claim?

Caffeine is one of the most widely consumed substances in the world, and is found in coffee, tea, and chocolate. Many people, including both health care practitioners and the public, believe that caffeine increased urine output leading to dehydration. 
Picture
However, a number of studies have looked at the question in close detail. In one study from 2014, researchers looked at 50 male coffee drinkers habitually consuming 3–6 cups per day. The participants consumed either four 200mL cups of coffee containing 4mg/kg caffeine or the equivalent amount of water for three days. The results showed no change in total body water, 24-hour urine output, or blood markers of hydration between the coffee and water drinkers. ​
Picture
Other studies tell a different story. In a study from 1997, twelve regular coffee drinkers abstained from coffee consumption for 5 days, and then drank 6 cups of coffee. This led to an increase in 24-hour urinary output and a decrease in total body water, as well as increased excretion of sodium and potassium. 
Another study found that coffee with high caffeine content (6mg/kg) caused an acute diuretic effect, but low caffeine coffee (3mg/kg) did not. 
Picture
Lastly, a literature review from 2003 concluded that "acute ingestion of caffeine in large doses results in a short-term stimulation of urine output in individuals who have been deprived of caffeine for a period of days or weeks. A profound tolerance to the diuretic and other effects of caffeine develops, however, and the actions are much diminished in individuals who regularly consume tea or coffee. Doses of caffeine equivalent to the amount normally found in standard servings of tea, coffee and carbonated soft drinks appear to have no diuretic action."

Take Home Message

The available evidence suggests that high caffeine consumption (3-6 cups of coffee) causes an acute increase in urinary output, but the effect is diminished in habitual coffee drinkers. 
​
Bottom Line: If you drink coffee regularly, it is not likely to cause dehydration. 
0 Comments



Leave a Reply.

    Author

    Dr. Tomah Phillips, ND

    Book a visit

    Archives

    April 2020
    February 2019
    January 2019
    September 2018
    July 2018
    June 2018
    May 2018
    April 2018
    November 2017
    August 2017
    June 2017
    May 2017
    April 2017
    March 2017
    February 2017
    January 2017
    October 2016
    September 2016
    July 2016
    June 2016
    February 2016
    November 2015
    January 2015
    December 2014
    November 2014
    October 2014
    September 2014
    August 2014
    June 2014
    May 2014
    April 2014
    March 2014
    February 2014

    Categories

    All
    Acupuncture
    Aging
    Allergies
    Anxiety
    BC Parent
    Cardiovascular Disease
    Coffee
    Diet
    Gut Health
    Health
    Heart Health
    Herbal
    Immune
    Insomnia
    Kids
    Natural
    Natural Remedies
    Naturopathic
    Nutrition
    Pregnancy
    Probiotics
    Recipes
    Stress
    Telemedicine
    Vitamins

    RSS Feed

HOME / ABOUT / SERVICES / NEW PATIENTS / BLOG / CONTACT / BOOK APPOINTMENT
BOOK ONLINE
Dr. Tomah Phillips ND
​
236-1628 W 1st Ave
Vancouver, B.C.
V6J 1G1
The information provided on this site is intended for your general knowledge only and is not a substitute for professional medical advice or treatment for specific medical conditions.
  • Home
  • About
    • About Dr. Tomah
    • My Philosophy
    • About Naturopathic Medicine
  • Services
    • Total Health Tennis
    • Conditions >
      • Digestive Disorders >
        • SIBO / IBS >
          • SIBO Questionnaire
      • Sleep Disorders
      • Fatigue & Adrenal Dysfunction
    • Treatments >
      • Diet and Personalized Nutrition
      • Herbal Medicine
      • Acupuncture
    • Naturopathic Lab Testing >
      • Adrenal Stress Test
      • SIBO / IBS Breath Test
      • Comprehensive Digestive Stool Analysis
      • NutriGenomix Genetic Test
      • Vitamin D Testing
  • FAQ
    • What To Expect
    • FAQ
    • Fee Schedule
  • Articles
  • Contact
  • Store