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weight after work out

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either my scales at home are very wrong or ive got heavier.... is everyone always a few punds heavier after a work out than they are that morining even if you havnt eaten or drank anything and only work out for half an hour

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Don't weigh yourself more than once a day - your weight will fluctuate and it isn't worth scratching your head over why it has.

I always weigh more after a workout. I wouldn't fret over it. Like amethyst said, don't weigh yourself constantly! (I need to follow this advice better as well :P )

Weighting during the day is not consistent, for lots of reasons: clothing and shoes, how much you just ate, whether you defecated or not, just peed or not, just drank a bunch of water etc.  Most people gain throughout the day, so time of day would matter too.

You probably lost (water) weight during your workout, but have more clothes on and ate etc. since your morning workout.  

 I have a very good scale and so does my health club. You might find my typical "weight during the day" illuminating: 

  • 5 AM, nude, after peeing, before doing #2, before eating or drinking anything: 190 lbs (+- 0.4)
  • 2 PM:pre-workout at the gym, wearing shorts, and running shoes: 196.5 lbs (+- 1.2)
  • 3 PM: (after one hour of hard cardio): 194.7 lbs (+- 1.6)
  • I re-hydrate, eat an early dinner etc. I don't typically weight in at night, but probably weight around 191.8 (+- 0.6) just before bed.

My point being that comparing morning weight with after-workout weight is too much like comparing apples with oranges and has little value.

I am not a "scale junkie," but I did quite a bit of experimentation to figure out how much water I needed to consume during long endurance efforts (6+ hrs.)

I hope this is of some help.

Correction: In the end of the second paragraph, I meant to say "since your morning weight in" not "workout."


That is very interesting....I have the same problem.  I weigh myself after a workout because it is the best time for me to do it and I seem to stay the same weight, or even go up.  I will try before I work out and see what happens.  Very interesting.  I just thought this whole middle age thing was happening.

I used to weigh myself several times a day, average the weigh-ins, and then call that my "true" weight.  But enough CC posters convinced me that my first morning weight of the day is probably the "true" weight, if there is such a thing. 

Concerning weighing after weigh-lifting.  I only do light weights around 4-5 times a week for around 35-45 minutes.  So my weighing-in after a weight-lifting workout might not be too applicable.  I found out that I sometimes actually lost a bit of weight, usually less than a pound when I weighed immediately before compared to immediately after. Or I would stay almost the same. The thing is that I did not drink any liquids before weighing immediately after lifting. 

As far as losing weight, when I weigh immediately after doing an exercise, I always lose at least a bit of weight after speed walking and stationary bike.  I don't seem to lose any weight after doing abs.  I lose just a tad bit after hitting the heavy bag and sometimes after lifting. 

Is there a way for you to check your weight after a work out on several or at least one other scale and see if they are in general agreement? Basically, I think that the fact you are lifting weights is such a positive thing that if you are gaining weight, it is very healthy muscle weight.  Good job and good luck on the workouts.


It's time to think of weight not as a number but as a range.

Here's a metaphor that will help, I think.

Would you weigh a river? How? One day it rains, another it doesn't. There's constant input and output. If there were such a thing as a river weighing machine, it would record a different number every day. So we wouldn't count on that number, what we would put our faith in is the TREND. Changes over time. So let's say one day it's up, one day down. But say over 7-10 days it heads down, then we can say safely there's a drought up-river!

I am sounding pedantic, I'm aware. I am having a mini-rant here, but I really do want to bring across the point that it's impossible to judge what is happening from day to day in our bodies - it's a complex system, so many variables! Just watch the trend line, and keep the 'up-river drought' going. You'll get results.

 A big  "Yeah" to everything pinzywinzy said!

Original Post by pinzywinzy:

So let's say one day it's up, one day down. But say over 7-10 days it heads down, then we can say safely there's a drought up-river! the trend line, and keep the 'up-river drought' going. You'll get results.

 I third this advice.

9 Replies