How can I increase my iron level?

Name of Office: National Voluntary Blood Services Program (NVBSP)

Donors may be deferred from donating due to a low hematocrit (iron) level. This restriction is for the safety of the donor and ensures  that after donation, the donor's hematocrit level will still be within the normal range for a health adult. Since hematocrit levels can fluctuate daily, a deferral for a low hematocrit level does not mean a donor is anemic. A donor may help increase his or her hematocrit levels by eating foods high in iron such as red meat, dark green vegetables and raisins or by taking a multivitamin that contains iron.