i have been a regular, monhly platelet donor for about 3 years (they like my a-negative blood). i've been doing the low-carb thing since aug 07 and lost 46 pounds by the time i was banded in feb 08. i've lost 41 more since then.
just recently, (april and then again in june) i've not been able to donate because of a low pulse (44 and 48 bpm where the minimum is 50).
has anyone else encountered issues with their blood pressure, iron levels, or pulse when donating blood or blood products?