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Drinking Water During Exercise

How Much Water Should I Drink When I Work Out?

172 Comments



  • This article answered a long-time question for me. I find that if I drink while I run I get really sick to my stomach -- almost like motion sickness -- and I feel like I am going to vomit. It has a significantly detrimental impact on my running. So my answer was not to drink while I run. But my running partner thinks I'm crazy and I'm going to die. She drinks almost constantly while we run -- even short 3 milers. After reading this article I realized that starting about an hour and a half before a run (and stopping about 30 minutes before) I drink a LOT of water. By the time I start running it is no longer sloshing around in my stomach and I'm fine. I know that I don't have any symptoms of dehydration because I am able to maintain my pace without problems and I don't have any cramping. I will have my running partner read this and then maybe she will feel better (or at least know when she needs to call the ambulance if I do get dehydrated! ;-) Thanks SparkPeople - 6/18/2012 11:32:03 AM
  • I understand the importance of water during a workout, but i know i dont drink more than one bottle the entire 60 min workout. I do alot of sprints, so i dont want to get a stitch on the next sprint cycle so i drink 2-3 swallows at a time until the bottle is gone, usallly by the end of the workout. Then as i am winding down, i drink v8 and eat protien and have another bottle of water, this time flavored with crystal lite. - 9/4/2011 7:04:44 AM
  • I think I drink at least 750 ml of water during a 90 min workout. And I'm pretty sure it's more than I sweat... If I drank only as much as I sweat I'd feel really bad. - 9/4/2011 4:02:21 AM
  • AZURE-SKY
    I think how much water you need depends on your body weight. I drink periodically throughout my my workout, but I don't chug-a-lug a bottle of water. I drink some before I start, then take a few sips at a time during the workout. When I'm done, I'll drink a lot of water, partly to cool me down, and partly to rehydrate me.

    I live in southern Arizona, and sweat dries on the skin almost immediately because of the heat and low humidity, so it's critical to stay hydrated in those conditions. So, if I'm walking or jogging outside, I drink more water than if I were working out inside an air-conditioned gym or in my own house. - 6/5/2011 12:39:00 PM
  • Oh my goodness! Drinking that much water would make me feel like I was sloshing my way through my workout! Sometimes when I drink too much while working out I get nauseous.... - 6/5/2011 12:03:46 PM
  • I've also found that being hydrated when exercising, even during water aerobics, helps to stop muscle cramps. Great article! - 3/22/2011 6:36:21 PM
  • SHARON03GRIZ
    Incredible! I did not know that much was lost. I will make sure to have my water bottle handy. Great information! - 3/9/2011 9:22:47 AM
  • I was really, really surprised that we loose a quart of water during workouts. I've been drinking lots but will continue to drink more. Thank you for this! - 2/9/2011 10:43:01 AM
  • I work out for 1 hour in the morning. I drink 2 quarts during that time. The first one goes down a little quicker than the 2nd one. I do not put ice in it because I do not want to choke on an ice cube while exercising. - 2/4/2011 6:35:01 PM
  • Wow, interesting to read just how much water we actually lose - I didn't know to be honest. Great article, I'll definately be making the effort to drink more when I'm exercising. I do have problems with stitches though when I drink before working out? I've stopped drinking before and during a workout, but as the article says; I become tired alot more quickly and find it hard to keep going. - 1/15/2011 4:35:38 PM
  • I had NO idea how much fluid I lose when I sweat!!! What an eye opener. From now on I'm going to make sure my water bottle is in my gym bag at all times.
    Great article. - 12/7/2010 7:45:50 PM
  • When I workout I have water nearby and I drink when I am thirsty. - 9/29/2010 12:57:56 PM
  • Maybe one could take time to drink that much water during a very low impact workout like hot yoga, but during directed sessions like step aerobics, you don't exactly get to stop every few minutes for water - cause it starts to mess with your target heart rate. And - having that much water sloshing around inside of me would end up giving me a cramp! It just works better for me to make sure I've eaten and had some water an hour before class, anymore and I'd need a few bathroom breaks. I just drink all of my water as soon as my class is finished. - 9/14/2010 7:54:02 AM
  • MMM225
    That seems like a lot to me. If i drank that much water during exercise, i would prob overhydrate. And it also depends on how intense the exercise is. Knowing ones sweat rate is important. - 9/12/2010 11:27:11 PM
  • I actually intentionally STOP drinking (or eating) much for at least a couple of hours before I do my treadmill jogging/running sessions. I get stitches in my sides if I drink or eat too soon before my workout. I am sure to drink a lot of water right afterward but if I drink right before or during the workout, I actually get less out of my workout than if I don't. I am just doing all I can to not slow to a walk if a stitch hits me. I wish it wasn't the case but that's just how it goes! - 9/10/2010 6:14:04 PM

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