I have been told my mean corpuscular volume is high. I have moderated my alcohol intake and begun taking a multi-vitamin. What can it cause?

Vitamin deficiency. Large (macrocytic) red blood cells usually result from a deficiency of vitamin B12 or Folic Acid (folate). If you are taking those and your macrocytes don't improve, you may not be able to absorb the vitamins from you GI tract. You may wish to see your doctor again or consult a hematologist if things don't improve.

Related Questions

What kind of problems can result from high mcv? I have moderated my alcohol intake and begun taking a multi-vitamin to help with folate (folic acid) and b-12.

You're correct . Large (macrocytic) red blood cells usually result from a deficiency of vitamin B12 or Folic Acid (folate). If you are taking those and your macrocytes don't improve, you may not be able to absorb the vitamins from you GI tract. You may wish to see your doctor again or consult a hematologist if things don't improve. Read more...