Got food poisoning and lost 5 pounds in three days. Is this real weight loss?

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  • kthompson601
    kthompson601 Posts: 174 Member
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    You'll probably gain it all back. Back in the winter I had a terrible stomach bug and spent 12 hours throwing up. I lost 5 pounds in 24 hours (I got ill the day I always weigh, so for comparison I weighed the next day and had lost 5 pounds). I gained it all back in a week or so, though, and then was able to resume my regular weight loss (and have lost about 20 pounds since then).

    You're mainly water, you know--anywhere from 65 to 75 percent of you is water right now. If you are vomiting or have severe diarrhea, you're losing a ton of water. 1 gallon of water weighs 8 pounds.
  • ninerbuff
    ninerbuff Posts: 48,579 Member
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    Unless you burned over 17,000 calories over your TDEE during that time, then it's just mostly water weight.

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