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musicmad-123 t1_je03hsi wrote

Reply to comment by DumbbellDiva92 in TIL about Lillan Bloodworth, who donated blood every 56 days for nearly 50 years. By the time she stopped at age 85, she had donated 23 gallons. (The average person's body contains about 1.5 gallons.) by WouldbeWanderer

In the UK they test our iron right before the donation every single time. I think they did trial having women be able to donate more frequently but they concluded it was safer to keep it as is.

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DumbbellDiva92 t1_je03wlc wrote

They test our hemoglobin before as well but that’s different from ferritin. Think you need more blood for that (can’t just use a finger prick), but you can sometimes have iron deficiency that doesn’t show up by that (but would show up as low ferritin).

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