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Weight “Gain” After Run

Running2FitRunning2Fit Posts: 423Member Member Posts: 423Member Member
Does this happen to anyone else? Almost every morning after a run the number on the scale is up. I know I don’t overeat on my run days, I use a food scale and feel accurate in my calorie counting. And I don’t eat back my calories as I’m typically not hungry after a run - I usually just shower and go to bed. I assume it’s water weight but it is annoying to get in a good, sweaty workout and see the scale go up!

Replies

  • sardelsasardelsa Posts: 6,778Member Member Posts: 6,778Member Member
    Likely your muscles holding on to water after exercise. I wouldn't worry about it!
  • janejellyrolljanejellyroll Posts: 19,368Member Member Posts: 19,368Member Member
    When you work your muscles, they often hold on to water to help with recovery. Don't get annoyed. This is literally your body doing what it is meant to do and helping you recover from your run.
  • apullumapullum Posts: 2,042Member Member Posts: 2,042Member Member
    I ran a half marathon on Sunday and I’m currently up 2.8 pounds from before the run. It’s water. It’s annoying but also a natural and expected process.
  • CSARdiverCSARdiver Posts: 5,237Member Member Posts: 5,237Member Member
    Glycogen & water. Takes about 5-7 days to fully flush through.

    I note that I lose ~2-4 lbs just from sweat and exhaled moisture on a good run and this all evens out after I hydrate.
  • spiriteagle99spiriteagle99 Posts: 1,828Member Member Posts: 1,828Member Member
    I only weigh myself after a rest day for this reason. Never after a hard run.
  • mbaker566mbaker566 Posts: 6,369Member Member Posts: 6,369Member Member
    interesting. i'm usually down after a run over 5 miles
  • garystrickland357garystrickland357 Posts: 271Member Member Posts: 271Member Member
    I'm always heavier after a hard run or bike ride.
  • Running2FitRunning2Fit Posts: 423Member Member Posts: 423Member Member
    mbaker566 wrote: »
    interesting. i'm usually down after a run over 5 miles

    Haha well my longest is 4. I only started running few months ago.
  • Running2FitRunning2Fit Posts: 423Member Member Posts: 423Member Member
    I only weigh myself after a rest day for this reason. Never after a hard run.

    I weigh myself every day. It keeps me on track with my weight loss. I’m not demotivated by the scale fluctuations, I know it’s just water. It’s just slightly annoying because it’s always nicer to see the scale go down.
  • OldAssDudeOldAssDude Posts: 1,247Member, Premium Member Posts: 1,247Member, Premium Member
    Try weighing yourself right before and then again right after a run.
  • rldeclercq4rldeclercq4 Posts: 197Member Member Posts: 197Member Member
    I love weighing myself after a run. Typically 2-3 lbs less after a 3-5 miler. I’ve tested it numerous times by weighing myself before the run and after. 3 miles is about 2 lbs, 5 miles is close to 3 lbs. But I do my morning runs first thing and don’t really drink much water during the run and always use the bathroom before stepping the scale. My uneducated guess would be that you’re replenishing yourself with water as you’re sweating it along the way.
  • mph323mph323 Posts: 2,851Member Member Posts: 2,851Member Member
    OldAssDude wrote: »
    Try weighing yourself right before and then again right after a run.

    Do it! It's really interesting! I've done it before and after two or three challenging hours on the bike (I'm very careful about hydration). I'll usually come in no more than a pound lower. The next morning - up two or three pounds. Water retention for muscle repair.
  • collectingbluescollectingblues Posts: 1,922Member Member Posts: 1,922Member Member
    Yup. Up two pounds the morning after, every single run or barre class.
  • AnnPT77AnnPT77 Posts: 8,358Member Member Posts: 8,358Member Member
    OldAssDude wrote: »
    Try weighing yourself right before and then again right after a run.

    And weigh your water bottle(s) before and after, too, if you drink during the run.
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