Need to eat more hamburgers

Went to Red Cross in my second attempt in two weeks to give blood. Am rejected AGAIN for failing the haemoglobin test. This time my blood iron level is even lower, 9.x as in contrast to 11.2 last week. The acceptable level is 11.5.

This really sucks cos I really want to give blood. It's about the only "good" thing I am capable/willing to do for strangers.