How long does it take the body to replace half a liter of blood?

Question

I donated today and was wondering

Answer 1

blood volume replenishes within minutes to a couple of hours. for the body to completely make up for the loss of all the red blood cells, it takes about a month or month and a half. you might feel a little lightheaded right after donating, but you everytime ive donated ive felt ok or even better. side effects from donating are really all in your head, so you can make them to be what you want. if you want to feel like you almost bled to death then youll feel bad. if you feel proud of yourself for doing it, youll feel great.

Answer 2

4-6 weeks. I recomend you take Iron suplements, and rest the remainder of the day.