How many calories does a standard whole blood donation burn?

Fosheze@lemmy.world to No Stupid Questions@lemmy.world – 152 points –

So I just went and donated blood again and durring the recovery period it occured to me that it takes quite a bit of work for your body to regenerate that lost blood volume and the actual blood cells. Regrowing that many cells seems like it would be fairly energetically intensive. So how many calories does producing all those new blood cells actually consume? Is there even a way to know that?

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Oh man, instead of my daily workout, I could just donate daily! After a few months, I’d be a blood making machine!

If you're however old you are now and still not a blood making machine, I'd say see a doctor.

As a chronically anemic person, I need other people's blood making machines.

Go donate if you can! I will take your sweet, sweet red blood cells.

I'm at nearly 50 donations (each 0.5L) of sweet sweet O+. Apparently, my blood is really good for children since I've never contracted some specific disease.