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    How did I gain 5 lbs overnight?
    Iram00 posted:
    Okay so last week, I began running on a consistent basis and logged 19 miles. On the Sunday before my weigh-in, I ran 5 miles. On Monday morning, I was a 160.7 lbs. On Friday morning a few days earlier, I was 160.5 lbs. So far it makes sense. I consumed a lot of food on Monday, partly because I was hungry, and partly because I had two large slices of pizza (which hopefully a 75 minute walk burned off). Then I did weight training for about 2 hrs (with 20 min cardio added) and burned about 500 calories. However, I still consumed a lot of food that day. The next morning when I weighed myself, I was 166.7 lbs. How on earth did I gain five lbs overnight? Is it because I used up the glycogen last week and this is basically the return of my glycogen reserves? Or is it soreness from my strength-training routine + the weight of the really large amount of food I ate yesterday (I was significantly over my caloric budget for the day)? It doesn't make sense! :(
    cla-atl responded:
    This is one of the pitfalls with weighing every day. You have to understand that your body fluctuates a lot and you can't fret over those fluctuations until you see them for several days in a row. There is no way you gained 5 pounds overnight. You have to eat 3,500 calories more than your body needs to gain one pound. You would have had to eat 17,500 more! Even a whole pizza is probably not that much. My guess is your muscles are retaining water from the 2 hours of ST you did the day before. It's also possible you are retaining water from the salt in the pizza (or other foods you ate). HTH! :smile:
    boxingunderwater responded:
    Iram, there are a few possibilites. First understand, five pounds would be an extra 17500 calories--I think it would be impossible to eat that much extra. First, if you're not hydrating properly during your workouts, you're going to gain significant water weight. Next, working out can burn off the CALORIES in pizza, but not the sodium. When you binge, especially on processed foods with lots of carbs and sodium, you retain lots of water also. Lastly, do you weigh you're self AFTER your bathroom habits, before, do you do the same thing each day? More food taken in means more waste sitting around. Lastly, if you're pushing yourself too hard, you're body may just be fighting you (kind of). Physical and mental stress are not too far apart in your body's mind. I hope that helped!
    Zucena responded:
    I would say it's definitely probably water weight. Believe me, it happened to me. One day I was at 157.5, the next day I was at 162 and then the next day I was at 158.5. Be really careful with your sodium intake, drink a LOT of water and keep track of your calories so you don't go over too much. If the scale jumps up one day (or down) by crazy amounts, never worry about it, just keep doing the healthy and fit thing to do and you should be fine.
    boxingunderwater responded:
    *Doh, we posted almost the same time!
    Aeipox responded:
    I had a similar problem. I'm trying my hardest to lose these last 9lbs (I weigh 217 I need to weigh 208) so I can join the Marine Corps. I usually run anywhere from 4-6 miles a day. Two days ago I ran 10miles and weighed (214) before I went to bed. Yesterday I took it pretty easy and and did "p90x - Yoga" late at night and weighed (210lbs) before I went to bed. I was so happy!! Today after waking up I went into the bathroom to check the scale and it says I'm back up to 216! how did that happen?! I drink plenty of water, I watch what I eat... I'm usually well under the 2,000 calorie/day (for instance, all i had yesterday was..Coffee, multi grain cereal, 2x salads, and tomato soup) so I guess what I'm trying to ask is... How'd I gain 6lbs and what would be the best way to lose these 6lbs - 9lbs fast?

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