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  1. Healthline
    https://www.healthline.com/nutrition/8-glasses-of-water-per-day

    Drink 8 Glasses of Water a Day: Fact or Fiction? - Healthline

    • Learn why the 8×8 rule may not be based on science and how much water you really need. Find out the benefits of staying hydrated and the factors that affect your water needs.… See more

    Overview

    Eight glasses a day may not actually be based on science. This varies for everyone, and you can get needed fluids from other foods and beverages, too.
    You’ve pro… See more

    Healthline
    Evidence for drinking 8 glasses of water each day

    It’s hard to pinpoint exactly where and when the “eight glasses per day” rule originated. There are theories that it may be based on a fluid intake of 1 ml per calorie of food consu… See more

    Healthline
    Foods and beverages other than water can contribute to hydration

    It’s not just plain water that supplies your body with water. Other beverages, like milk and fruit juice, count as well.
    Contrary to popular belief, caffeinated beverages … See more

    Healthline
    Drinking enough water has some health benefits

    You need to drink enough water to stay optimally hydrated. Generally speaking, that means replacing the water you lose through breath, sweat, urine, and feces.
    Drinking en… See more

    Healthline
    Is there a myth about drinking 8 glasses of water a day?
    We asked clinical dietitian Holly Gilligan, MA, RD, CDN from UR Medicine’s Fitness Science Department, to weed out the truth from the fable of a few common myths. MYTH: Everyone should drink 8 glasses of water a day.
    urmc.rochester.edu
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    Table of Contents
    Overview
    Evidence for drinking 8 glasses of water each day
    Foods and beverages other than water can contribute to hydration
    Drinking enough water has some health benefits
    Is there a myth about drinking 8 glasses of water a day?
     
  1. Eight glasses of water is roughly equivalent to less than two liters of water per day12. This is the basal water required by a fasting, well adult per day, who is doing nothing at all, with no special losses1. To help remember to drink enough water every day, you can measure out how much water you'll need each day and have a container that size2. For example, if you have an empty 2-liter soda bottle, fill it with water and put it in your fridge, then drink the entire bottle of water over the course of the day2.
    Learn more:
    Eight glasses, which is just less than two liters of water, is very roughly the basal water required by a fasting, well adult per day, who is doing nothing at all (for example, staying in the hospital), with no special losses (such as vomiting or diarrhea).

    Do You Need to Drink 8 Glasses of Wate…

    www.inverse.com/article/55149-how-many-glasse…
    Measure out how much water you'll need each day. 2 liters (0.5 US gal) is about 8 glasses of water. Having a container that size may help you remember to drink enough water every day. If you have an empty 2-liter soda bottle, fill it with water and put it in your fridge. Drink the entire bottle of water over the course of the day.

    How to Get Your Eight Glasses of Water …

    www.wikihow.com/Get-Your-Eight-Glasses-of-Wat…
  2. People also ask
    Do you really need 8 glasses of water a day?
    MYTH: Everyone should drink 8 glasses of water a day. While drinking 8 glasses (64 ounces / 2 liters) is an easy goal to remember and can certainly be reasonable for some, many factors affect individual hydration needs. These include: Do you really need 8 glasses of water each day? Weather: When heat and humidity rise, we need to drink more.

    Hydration 101: Drinking 8 Glasses of Water and Other Myths Debunked

    urmc.rochester.edu
    Is 8 glasses of water a day too much?
    Eight glasses of water per day may be more than enough for some people, but it may be too little for others. If you want to keep things simple, just listen to your body and let thirst be your guide. Drink water when you’re feeling thirsty. Stop when you’re not thirsty anymore. Make up for fluid loss by drinking more during hot weather and exercise.

    Drink 8 Glasses of Water a Day: Fact or Fiction? - Healthline

    healthline.com
    Is there a myth about drinking 8 glasses of water a day?
    We asked clinical dietitian Holly Gilligan, MA, RD, CDN from UR Medicine’s Fitness Science Department, to weed out the truth from the fable of a few common myths. MYTH: Everyone should drink 8 glasses of water a day.

    Hydration 101: Drinking 8 Glasses of Water and Other Myths Debunked

    urmc.rochester.edu
    Where did the myth of 8 glasses come from?
    So where did the myth of the 8 glasses come from? Fox says it likely stems from a decree from the U.S. Food and Nutrition Board issued back in the 1940s. It suggested that everyone drink 2.5 liters (84.5 ounces) per day — so not far off from today's standard.

    Do You Need 8 Glasses of Water a Day? | Tufts Medicine

    tuftsmedicine.org
    How much water should you drink a day at Tufts Medical Center?
    Tufts Medical Center is proud to offer educational information from our registered dietician experts. People tend to follow what they hear. For instance: The rule of thumb is that everybody needs to drink at least 8 glasses of water per day.

    Do You Need 8 Glasses of Water a Day? | Tufts Medicine

    tuftsmedicine.org
    Does drinking a glass of water cause dehydration?
    The same goes for tea, juice, milk and caffeinated sodas: One glass provides about the same amount of hydrating fluid as a glass of water. The only common drinks that produce a net loss of fluids are those containing alcohol — and usually it takes more than one of those to cause noticeable dehydration, doctors say.

    Do You Need Eight Glasses of Water Per Day? - Snopes.com

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  3. Mayo Clinic
    https://www.mayoclinic.org/.../water/art-20044256

    Water: How much should you drink every day? - Mayo Clinic

  4. University of Rochester Medical Center
    https://www.urmc.rochester.edu/news/…

    Hydration 101: Drinking 8 Glasses of Water and Other …

    Aug 8, 2023 · Learn why drinking 8 glasses of water a day is not a universal rule for hydration and how to adjust your fluid intake according to your individual needs. Find out the facts and myths about caffeine, sports drinks, …

  5. Scientific American
    https://www.scientificamerican.com/ar…

    Fact or Fiction?: You Must Drink 8 Glasses of Water Daily

    Jun 4, 2009 · You Must Drink 8 Glasses of Water Daily. Do healthy people really need liquids even when they are not thirsty? By Karen Bellenir. Health. Virtually every health-conscious person can quote the...

  6. Tufts Medicine
    https://www.tuftsmedicine.org/about-us/…

    Do You Need 8 Glasses of Water a Day? | Tufts Medicine

    Aug 2, 2022 · Debunk the myth: Do you really need 8 glasses of water a day? Learn about the science behind staying hydrated and maintaining optimal health.

  7. Snopes.com
    https://www.snopes.com/fact-check/water-works-2

    Do You Need Eight Glasses of Water Per Day? | Snopes.com

  8. WikiHow
    https://www.wikihow.com/Get-Your-Eig…

    How to Get Your Eight Glasses of Water a Day: 11 …

    Sep 8, 2024 · Train yourself to drink a glass of water every morning when you first wake up, a glass when you get home from work or school, and a glass every evening right before bed. That's three of your eight recommended daily glasses.

  9. Healthline
    https://www.healthline.com/nutrition/7-…

    7 Science-Based Health Benefits of Drinking Enough …

    Mar 8, 2023 · It’s commonly recommended that you drink eight 8-ounce (237-mL) glasses of water per day (the 8×8 rule). Although there’s little science behind this specific rule, staying hydrated is...

  10. Verywell Health
    https://www.verywellhealth.com/how-much-water...

    How Much Water Should You Really Drink Each Day? - Verywell …

  11. MSN
    https://www.msn.com/.../ar-AA1kGra8

    Moment of Science: 8 Glasses of Water - MSN

    Back in 1945, the US Food & Nutrition Board recommended that adult males should take in about 2 to 2.5 liters of water a day, which does average out to about 8 glasses of 8 to 10 ounces each. Most ...

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