I donated blood for the first time this year in April and did it a second time back in June. The nurses were really impressed with my hemoglobin count both times (this particular hemoglobin count indicates whether or not you are iron-deficient - it's *NOT* the hemoglobin A1C number we diabetics are so used to seeing!). The first time I registered 15.8 g/dl and the second time I got 15.4 g/dl. The average count for women is between 12-16, so I was at the high end of normal (considering up to 20% of women are iron deficient on average according to some citations, my numbers were really considered ideal).
While I didn't doubt that I had good iron levels (I eat a diet rich in both fish, a good heme iron source, and iron-rich vegetables for non-heme iron), I still wondered whether or not there might be some correlation with hemoglobin and diabetes, so I did a Google search and found this:
How about the rest of you who have donated? Were your numbers statistically on the high end of normal? Do you think our elevated A1Cs (compared to non-diabetics) could be contributing to increased red blood cell production somehow?
(Additionally, another cause of elevated hemoglobin is dehydration - I'll admit I'm not among the biggest water drinkers out there, so that could be contributing to my numbers...)