this post was submitted on 02 Feb 2025
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Today I Learned (TIL)

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You learn something new every day; what did you learn today? Submit interesting and specific facts about something that you just found out here.

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The original post: /r/todayilearned by /u/ProudReaction2204 on 2025-02-02 00:37:11.

Original Title: TIL 35% of whole blood donors become iron-deficient (defined as ferritin levels of below 25 µg/L). Daily iron supplementation (37 mg of iron) for at least 8 weeks after is expected to replenish iron loss from one whole blood donation.

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