Because I have Lupus, my WBC is chronically low and I also have problems with low RBC's due to either some type of anemia or a blood disease, right now my Hematologist is more concerned that my HGB, HCT, MCH and other indices are the opposite...they're high! In the past 5-6 years, they've very consistently been low! But through all these changes, my B-12 and my B-6 have remained HIGH and keep getting higher!??!