Normally, a person looses around 40ml of blood per period with people having 450 periods on average in their life. This means that on average a person would loose 18l of blood from menstruation alone. With the average human having between 4.5l and 5.7l, you'd only need to sacrifice 4 people to the menstruation gods to never have to shed blood for that ever again. ~~In my experience, it works best when sacrificing transphobes or terfs.~~
As a quick side note: I hate it when someone refers to it as a "pseudo-period". The hormonal cycle is very very real, I can assure you that.
True but it's not only blood. Source 1 says it's 70-80ml of fluids, 35-40ml of which is blood.
Regardless, as someone who has an almost obsessive fascination with our beautiful red fluid, the idea of someone being squeamish about blood is wild to me