It states the Hemoglobin carries about 69% of the total body iron, ferritin makes up for 15% . The challenge with that is for every pint you donate you can drop about 30 points of your ferritin levels and at a certain point, you can become anemic. Ferritin Test : Levels, low & high range, & health risks - FactDr If your hemoglobin is too low, we will ask that you wait to donate. . High Ferritin: How to Reduce It - Step To Health This study finds a 40% reduction in cardiovascular risk, after adjusting for other differences between donor and non-donor groups. High saturation can have this buffering effect for the first 1-3 donations. How Much Does Donating Blood Lower A1c - DiabetesTalk.Net At that rate of 2.5 mg a day absorbed, in 100 days, you've made up for the blood donation. Coffee also inhibits iron absorption, if you're not a fan of tea. Some patients report an even greater reduction in their ferritin per each phlebotomy. Here are the results: Shortly after my blood donation, my hemoglobin and total iron-binding capacity levels dropped significantly, while everything else moved into the optimal zone. Donors ages 16-18 are eligible for a whole blood donation once every six months (180 days) or a double red blood cell donation (DRBC) once every 12 months (365 days). What can cause ferritin levels to drop very quickly? Whole Blood Donation Affects the Interpretation of Hemoglobin A1c - PLOS Hemoglobin concentration was measured at the time of donation or clinic visit and with each subsequent appointment in repeat donors. What also goes down is your blood volume. It means that with a 500 ml blood extraction my hematocrit has reduced a 5.7%. How much does giving blood typically drop your ferritin? - reddit A more recent study found that mean recovery time of total RBC mass after donation of 550 mL of whole blood averaged 36 days (range, 10-59 days), 20 and therefore it is unlikely that total Hb mass . Therapeutic Phlebotomy for Iron Overload Treatment - Hemochromatosis Low iron is one of the most common reasons for a blood-donation deferral. In the case of the acutely bleeding patient with the spleen injury, the initial drop was 1.5 gm/dl. Donating 4 times is highly likely to decrease ferritin which will cause high BP and sleeping problems. The maximal decrease after a blood donation was 11% for hematocrit, 10% for hemoglobin concentration, 50% for ferritin, and 12% for RBC (p < 0.001). If you donate platelets you lose a certain number of red cells each time, and after a number of donations your iron stores and Hb can drop.