# donating blood to loose weight

**URL:** <https://boards.straightdope.com/t/donating-blood-to-loose-weight/615909>\
**Category:** Cecil's Columns/Staff Reports\
**Created:** [March 15, 2012, 11:16pm UTC](https://boards.straightdope.com/t/donating-blood-to-loose-weight/615909 "2012-03-15T23:16:38Z")\
**Posts on this page:** 7\
**Page:** 1

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**Author:** ![drewder](https://avatars.discourse-cdn.com/v4/letter/d/57b2e6/32.png) [@drewder](https://boards.straightdope.com/u/drewder)\
**Post date:** [March 15, 2012, 11:16pm UTC](https://boards.straightdope.com/t/donating-blood-to-loose-weight/615909/1 "2012-03-15T23:16:38Z")

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> **[Can I donate blood to lose weight?](https://www.straightdope.com/21343575/can-i-donate-blood-to-lose-weight)**

I wonder if plasma donation might be more effective for weight loss as you can do it twice a week and a much greater quantity of fluid.

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**Author:** ![running\_coach](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/running_coach/32/15836_2.png) [@running\_coach](https://boards.straightdope.com/u/running_coach)\
**Post date:** [March 16, 2012, 12:51am UTC](https://boards.straightdope.com/t/donating-blood-to-loose-weight/615909/2 "2012-03-16T00:51:25Z")

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You have to replace the fluid.

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**Author:** ![drewder](https://avatars.discourse-cdn.com/v4/letter/d/57b2e6/32.png) [@drewder](https://boards.straightdope.com/u/drewder)\
**Post date:** [March 16, 2012, 1:12am UTC](https://boards.straightdope.com/t/donating-blood-to-loose-weight/615909/3 "2012-03-16T01:12:40Z")

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> [@runner pat](#):
>
> You have to replace the fluid.

you replace whole blood too

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**Author:** ![TheChileanBlob](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/thechileanblob/32/435_2.png) [@TheChileanBlob](https://boards.straightdope.com/u/TheChileanBlob)\
**Post date:** [March 16, 2012, 1:24am UTC](https://boards.straightdope.com/t/donating-blood-to-loose-weight/615909/4 "2012-03-16T01:24:09Z")

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Even if you donated ALL your blood, you’d only lose 12-15 pounds. It’s fat you want to lose, not water.

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**Author:** ![Yorikke](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/yorikke/32/4335_2.png) [@Yorikke](https://boards.straightdope.com/u/Yorikke)\
**Post date:** [March 16, 2012, 1:36am UTC](https://boards.straightdope.com/t/donating-blood-to-loose-weight/615909/5 "2012-03-16T01:36:38Z")

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Lose. You lose weight. It makes your pants loose.

Joe

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**Author:** ![Irishman](https://avatars.discourse-cdn.com/v4/letter/i/b487fb/32.png) [@Irishman](https://boards.straightdope.com/u/Irishman)\
**Post date:** [March 16, 2012, 2:57pm UTC](https://boards.straightdope.com/t/donating-blood-to-loose-weight/615909/6 "2012-03-16T14:57:15Z")

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If all you want is indescriminate weight loss, just saw off a leg or two.

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**Author:** ![TruCelt](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/trucelt/32/523_2.png) [@TruCelt](https://boards.straightdope.com/u/TruCelt)\
**Post date:** [March 16, 2012, 5:14pm UTC](https://boards.straightdope.com/t/donating-blood-to-loose-weight/615909/7 "2012-03-16T17:14:34Z")

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One of the many sick strategies that young ballerinas in the early 80’s would use to stay thin, was to go out together once per month, have a truly (for us) ginormous brunch, (Eggs Benedict! And I ate most of the second one too! :eek: ) and then go donate blood together.

Would it work as a strategy to eat whatever you want and not exercise and stay thin? Of course not. But allowing oneself an occasional treat can really boost the discipline level of a chronically hungry person.