home
RSS
December 24th, 2010
10:20 AM ET

Can drinking lots of water help you lose weight?

Every weekday, a CNNHealth expert doctor answers a viewer question. On Friday, it's Dr. Melina Jampolis, a physician nutrition specialist.

Question asked by Tony of Shelton, Connecticut:

Is it true if you drink lots of water, it will help you to lose weight? Is it bad for your body if you consume too much of it?

Expert answer:

Hi, Tony. Research does suggest that drinking plenty of water may help you lose weight. An abstract by Dr. Brenda Davy, associate professor of human nutrition, foods and exercise at Virginia Tech, presented at last year's obesity conference in Phoenix, Arizona, showed that people who drank two glasses of water 20 to 30 minutes before every meal lost weight more quickly initially and lost significantly more weight than those who didn't.

In another study by Davy and her group, published last year in the Journal of the American Dietetic Association, she found that people who drank water before meals ate an average of 75 fewer calories at that meal. This may not seem like much, but if you ate 75 fewer calories at lunch and dinner for the next year, you could lose about 14½ pounds! In addition, being even 1 percent dehydrated can cause a significant drop in metabolism, which can also interfere with weight loss.

Finally, it is very difficult for the body to differentiate hunger from thirst. If you don't drink enough water throughout the day, you may mistake thirst for hunger and eat more than you really need, which can also impair weight loss. So staying well hydrated is important, particularly if you are trying to lose weight. And don't forget to eat lots of water-based foods like soups, vegetables and low-fat dairy, which are equally important for weight loss, as they lower the calorie density of meals. That can help you reduce calories without reducing portions.

To answer the second part of your question, yes, drinking massive amounts of water (gallons and gallons) can cause a dangerous condition known as hyponatremia (low sodium levels in the blood), which can cause confusion, irritability and seizures and may even lead to a coma.

This condition is very rare in healthy people but can sometimes be seen in the elderly or in endurance athletes who sweat significantly and drink water only to replace lost fluids. Most people should be far more concerned with not drinking enough water versus drinking too much.


soundoff (655 Responses)
  1. monrovia collision center

    https://www.tanken.ne.jp/cate/fhhanpu/rl_out.cgi?id=ox8448&url=http://ocrvcenter.com/motorhome-leak-repair-near-me/

    May 21, 2021 at 10:59 | Report abuse | Reply
  2. Social Media Marketing Company

    http://www.cravetechnology.com/__media__/js/netsoltrademark.php?d=affordableranking.com

    May 21, 2021 at 12:41 | Report abuse | Reply
  3. Local Marketing Business

    https://liveyourpassion.in/redirect.aspx?article_id=170&product_id=19&url=http://affordableranking.com

    May 21, 2021 at 13:20 | Report abuse | Reply
  4. yorba linda dump

    http://neoromance.info/link/rank.cgi?mode=link&id=26&url=https://www.ocrvcenter.com/rv-repair-shop-san-marino-california/

    May 21, 2021 at 16:32 | Report abuse | Reply
  5. Internet Marketing Consultants

    http://www.alkhatwa.com/Base/SetCulture?culture=en-US&url=http3A2F2Faffordableranking.com

    May 21, 2021 at 16:42 | Report abuse | Reply
  6. Content Marketing Experts

    You're so awesome! I don't believe I have read through something like that before. So good to find somebody with some original thoughts on this issue. Seriously.. many thanks for starting this up. This web site is something that is needed on the web, someone with some originality!

    http://www.iconrich.com/__media__/js/netsoltrademark.php?d=https://affordableranking.com/

    May 21, 2021 at 17:44 | Report abuse | Reply
  7. rv for sale orange county

    Having read this I thought it was really informative. I appreciate you spending some time and effort to put this content together. I once again find myself personally spending a significant amount of time both reading and commenting. But so what, it was still worth it!

    http://www.lameta.univ-montp1.fr/spip.php?article8&lang=fr&action=converser&var_lang=en&redirect=https://ocrvcenter.com/rv-repair-shop-san-marcos-california

    May 21, 2021 at 18:10 | Report abuse | Reply
  8. one stop shoppe

    Your style is so unique compared to other people I've read stuff from. Thanks for posting when you've got the opportunity, Guess I will just book mark this page.

    http://eforce.todayir.com/en/fileview.php?file=http://ocrvcenter.com/workstar-collision-repair-shop-near-me/

    May 21, 2021 at 20:06 | Report abuse | Reply
  9. RV Dent Repair Near Me

    Nice post. I learn something new and challenging on websites I stumbleupon every day. It will always be useful to read through articles from other authors and use something from their sites.

    http://www.etracker.de/lnkcnt.php?et=qPKGYV&url=http://www.ocrvshop.com/rv-repair-shop-claremont-california

    May 22, 2021 at 05:01 | Report abuse | Reply
  10. horse trailer roof repair

    http://oltv.cz/redirect.php?url=https://ocrvcenter.com/rv-repair-shop-calabasas-california

    May 22, 2021 at 08:53 | Report abuse | Reply
  11. RV Technician California

    http://www.space.sosot.net/link.php?url=https://livebevegan.com/vegan-news/all-vegan-kfc/

    May 22, 2021 at 11:23 | Report abuse | Reply
  12. rv parts indio

    https://www.iacconline.org/Redirect.aspx?destination=https://ocrvcenter.com/rv-repair-shop-san-juan-capistrano-california/

    May 22, 2021 at 11:53 | Report abuse | Reply
  13. RV Roof Los Angeles

    Everything is very open with a precise explanation of the challenges. It was really informative. Your site is extremely helpful. Thank you for sharing!

    https://ref.webhostinghub.com/scripts/click.php?ref_id=nichol54&desturl=https://sublimedir.net/Society/Relationships/?p=651

    May 22, 2021 at 15:30 | Report abuse | Reply
  14. RV Body Shop Near Me

    Aw, this was an extremely good post. Taking a few minutes and actual effort to produce a really good article… but what can I say… I hesitate a whole lot and don't seem to get nearly anything done.

    /

    May 22, 2021 at 17:22 | Report abuse | Reply
  15. RV Remodeling Riverside

    https://hslda.org/content/a/LinkTracker.aspx?id=4015475&appeal=385&package=36&uri=http://ocrv.biz/rv-repair-shop-murrieta-california

    May 22, 2021 at 17:55 | Report abuse | Reply
  16. oc rv dealers

    https://www.brandonsun.com/s?action=editReg&rurl=https://ocrvcenter.com/rv-generator-repair-near-me/

    May 23, 2021 at 08:02 | Report abuse | Reply
  17. Ambrose Penington

    I'm really into photography and would quite like a job involving it however i do NOT want to take pictures of people (weddings and stuff), i like taking arty/creative pictures. I also love writing and I have been thinking of writing for a teenage magazine and hopefully being able to get photography in there as well. Has anybody got any ideas on what job I could do that involves my kind of photography and writing and how I could get there. At the moment I'm 16..

    https://www.facebook.com/KateKowalskyWebMarketing

    May 24, 2021 at 03:03 | Report abuse | Reply
  18. roof repairs orange county ca

    http://www.sherlock.scribblelive.com/r?u=www.crazy4smiths.com/dole-canned-pineapple-coupon-smiths-sales/

    May 24, 2021 at 19:52 | Report abuse | Reply
  19. photo restoration orange county ca

    /

    May 24, 2021 at 21:14 | Report abuse | Reply
  20. truck shop orange county california

    After exploring a few of the articles on your site, I really like your technique of writing a blog. I book-marked it to my bookmark website list and will be checking back in the near future. Please visit my website too and tell me your opinion.

    /

    May 24, 2021 at 21:49 | Report abuse | Reply
  21. Content Marketing Experts

    Oh my goodness! Impressive article dude! Thank you so much, However I am having problems with your RSS. I don’t understand why I can't subscribe to it. Is there anybody having similar RSS issues? Anyone who knows the answer can you kindly respond? Thanks!!

    https://youngvirginvideo.info/go.php?url=https://affordableranking.com/

    May 24, 2021 at 23:28 | Report abuse | Reply
  22. Forklifts Orange County

    http://lav.it/template/redirect.php?id_news=804129&url=http://forkliftswildwestlifttrucks.com/lake-elsinore-forklifts

    May 24, 2021 at 23:50 | Report abuse | Reply
  23. Social Media Marketing Experts

    This site was... how do I say it? Relevant!! Finally I have found something that helped me. Many thanks!

    https://www.e-toomodels.com/__media__/js/netsoltrademark.php?d=affordableranking.com

    May 25, 2021 at 01:24 | Report abuse | Reply
  24. Forklift For Sale

    http://em.gohawaii.com/mtr40/c2.php?HVCB/26693011/218753/H/N/V/http://forkliftswildwestlifttrucks.com/eastvale-forklifts

    May 25, 2021 at 04:08 | Report abuse | Reply
  25. Video Marketing Companies

    Spot on with this write-up, I really believe that this website needs much more attention. I’ll probably be returning to read more, thanks for the information!

    https://telepesquisa.com/redirect?page=redirect&site=http://affordableranking.com/

    May 25, 2021 at 04:30 | Report abuse | Reply
  26. curso de corel draw

    Otimo conteudo parabens. Gostei do site. 193971550

    https://metamusica.com.br/

    May 25, 2021 at 04:42 | Report abuse | Reply
  27. Digital Marketing Firm

    May I just say what a comfort to discover somebody who actually knows what they are talking about over the internet. You actually understand how to bring an issue to light and make it important. A lot more people should check this out and understand this side of your story. I was surprised that you're not more popular given that you certainly have the gift.

    https://waseem.nl/baby/gbook/go.php?url=https://affordableranking.com

    May 25, 2021 at 05:06 | Report abuse | Reply
  28. Video Marketing Agency

    http://www.nap.halfmoon.jp/ps_nappy1/ps_search.cgi?act=jump&access=1&url=https://internetmarketingnevada.com/

    May 25, 2021 at 05:36 | Report abuse | Reply
  29. Internet Marketing Service Near Me

    Iím amazed, I have to admit. Rarely do I come across a blog thatís both educative and entertaining, and let me tell you, you have hit the nail on the head. The issue is something that not enough people are speaking intelligently about. I'm very happy I stumbled across this during my hunt for something regarding this.

    http://aurora.network/redirect?url=https://www.postfallsbootcamp.com/

    May 25, 2021 at 06:41 | Report abuse | Reply
  30. Forklift Extensions

    Everything is very open with a clear clarification of the challenges. It was truly informative. Your site is very useful. Many thanks for sharing!

    https://www.leroymerlin.com.br/logout?redirect=http://forkliftswildwestlifttrucks.com/norwalk-forklifts

    May 25, 2021 at 08:30 | Report abuse | Reply
  31. Digital Marketing Consultant

    Pretty! This has been an incredibly wonderful article. Thanks for supplying this info.

    http://www.designerdogs.com/__media__/js/netsoltrademark.php?d=affordableranking.com

    May 25, 2021 at 08:38 | Report abuse | Reply
  32. Digital Marketing Business

    Greetings! Very useful advice in this particular post! It is the little changes that make the most significant changes. Many thanks for sharing!

    http://www.starbellysales.com/__media__/js/netsoltrademark.php?d=affordableranking.com

    May 25, 2021 at 10:12 | Report abuse | Reply
  33. Content Marketing Company

    This site was... how do I say it? Relevant!! Finally I've found something which helped me. Cheers!

    https://www.alaskaguidedhunt.com/__media__/js/netsoltrademark.php?d=affordableranking.com

    May 25, 2021 at 15:46 | Report abuse | Reply
  34. Video Marketing Consultants

    Hi there, There's no doubt that your website could be having web browser compatibility problems. When I take a look at your website in Safari, it looks fine however, when opening in IE, it has some overlapping issues. I merely wanted to provide you with a quick heads up! Apart from that, wonderful blog!

    http://www.gotmyagent.com/cgi-bin/realtyrank/out.cgi?id=cwatters&url=https://affordableranking.com

    May 25, 2021 at 18:55 | Report abuse | Reply
  35. Internet Marketing Specialist

    http://www.guidestonesucks.biz/__media__/js/netsoltrademark.php?d=www.affordableranking.com

    May 25, 2021 at 23:01 | Report abuse | Reply
  36. furniture repair shops near me

    I’m amazed, I have to admit. Rarely do I encounter a blog that’s equally educative and interesting, and without a doubt, you have hit the nail on the head. The problem is something that too few people are speaking intelligently about. Now i'm very happy that I came across this in my hunt for something concerning this.

    http://www3.famille.ne.jp/~ykad/cgi-bin/search/ykrank.cgi?mode=link&id=51&url=https://jrsonsfooddistribution.com/home/sakely-egg/

    May 26, 2021 at 00:08 | Report abuse | Reply
  37. RV Beds Near Me

    I’m amazed, I must say. Seldom do I come across a blog that’s both educative and amusing, and without a doubt, you have hit the nail on the head. The issue is something that not enough men and women are speaking intelligently about. Now i'm very happy I came across this in my hunt for something regarding this.

    https://www.kultur-bad-vilbel.de/goto/?u=https://civil-engineering40505.blogcudinti.com/3153910/5-simple-statements-about-rv-mechanics-near-me-explained

    May 26, 2021 at 00:22 | Report abuse | Reply
  38. RV Remodel California

    Greetings, There's no doubt that your website could be having web browser compatibility problems. When I take a look at your site in Safari, it looks fine however when opening in I.E., it's got some overlapping issues. I simply wanted to provide you with a quick heads up! Apart from that, wonderful website!

    http://cssdrive.com/?URL=ebrokerhaz.hu/hu/rolunk/rendezvenyek/item/46-jogi-nyilatkozat?start=200270

    May 26, 2021 at 06:21 | Report abuse | Reply
  39. truck repair close to me

    http://www.arida.biz/sougo/rank.cgi?mode=link&id=27&url=http://www.devel.ebaa.news/news/news-details/2018/10/18653/

    May 26, 2021 at 08:47 | Report abuse | Reply
  40. Social Media Marketing Specialist Near Me

    When I originally commented I seem to have clicked the -Notify me when new comments are added- checkbox and from now on whenever a comment is added I get 4 emails with the exact same comment. There has to be a means you can remove me from that service? Thank you!

    https://www.sys.labaq.com/cli/go.php?s=lbac&p=1410jt&t=02&url=https://curtismelancon.com/

    May 26, 2021 at 13:12 | Report abuse | Reply
  41. RV Slide Out Near Me

    Pretty! This has been a really wonderful article. Thanks for supplying this information.

    http://moe.gov.np/site/language/swaplang/1/?redirect=https://ocrv.us/rv-repair-shop-panorama-city-california

    May 26, 2021 at 13:47 | Report abuse | Reply
  42. rv solar installation los angeles

    https://vse-doski.com/redirect/?go=https://ocrv.xyz/camper-van-repair-near-me

    May 26, 2021 at 22:22 | Report abuse | Reply
  43. Internet Marketing Experts

    http://1gr.cz/log/redir.aspx?r=citace_www.osel.cz&ver=A&url=http://postfallsfitness.com/

    May 26, 2021 at 23:00 | Report abuse | Reply
  44. rv entertainment system upgrade

    http://pt.tapatalk.com/redirect.php?app_id=4&fid=8678&url=https://ocrv.biz/rv-repair-shop-san-marcos-california

    May 27, 2021 at 04:15 | Report abuse | Reply
  45. rv slide out leak repair

    http://pt.tapatalk.com/redirect.php?app_id=4&fid=8678&url=https://ocrvcenter.biz/rv-tire-repair-near-me

    May 27, 2021 at 06:10 | Report abuse | Reply
  46. RV AC Near Me

    Hi there! This post couldn’t be written much better! Going through this post reminds me of my previous roommate! He constantly kept talking about this. I most certainly will forward this post to him. Pretty sure he'll have a great read. Thanks for sharing!

    http://www.artshub.com.au/job-apply-external/?ListingId=227894&ApplyUrl=https://ocrvluxurycoaches.com/rv-repair-shop-solana-beach-california

    May 27, 2021 at 06:47 | Report abuse | Reply
  47. trailer services near me

    http://www.freedback.com/thank_you.php?u=https://fleetrepairshops.com

    May 27, 2021 at 08:19 | Report abuse | Reply
  48. RV Storage Riverside

    Hi, I do believe your web site may be having internet browser compatibility problems. Whenever I take a look at your blog in Safari, it looks fine however when opening in IE, it's got some overlapping issues. I just wanted to provide you with a quick heads up! Apart from that, excellent site!

    https://legacy.aom.org/verifymember.asp?nextpage=https://theocrv.com/rv-repair-shop-lancaster-california

    May 27, 2021 at 16:27 | Report abuse | Reply
  49. RV Restoration Los Angeles

    https://www.luerzersarchive.com/goto/url/ocrv.me/rv-refrigerator-repair-near-me

    May 27, 2021 at 17:41 | Report abuse | Reply
  50. refrigerators orange county

    Hi, I do believe this is an excellent web site. I stumbledupon it 😉 I am going to revisit yet again since I book-marked it. Money and freedom is the greatest way to change, may you be rich and continue to guide other people.

    http://wamu.style.coocan.jp/click/click3.cgi?cnt=counter&url=https://ocrv.vip/rv-repair-shop-hesperia-california

    May 27, 2021 at 19:05 | Report abuse | Reply
1 2 3 4 5 6 7 8 9 10 11 12 13

Leave a Reply to Content Marketing Brea


 

CNN welcomes a lively and courteous discussion as long as you follow the Rules of Conduct set forth in our Terms of Service. Comments are not pre-screened before they post. You agree that anything you post may be used, along with your name and profile picture, in accordance with our Privacy Policy and the license you have granted pursuant to our Terms of Service.

Advertisement
About this blog

Get a behind-the-scenes look at the latest stories from CNN Chief Medical Correspondent, Dr. Sanjay Gupta, Senior Medical Correspondent Elizabeth Cohen and the CNN Medical Unit producers. They'll share news and views on health and medical trends - info that will help you take better care of yourself and the people you love.