Best Answer: MCV (mean corpuscular volume) refers to the size of each red blood cell. MCH (mean corpuscular hemoglobin) refers to the concentration of hemoglobin in each red blood cell. If MCV and MCH are low, it means your red blood cells are smaller than average (MCV) and paler than average (MCH), and can't carry as much oxygen as normal. This is usually caused by an iron deficiency anemia. Red meat does contain iron, but it may be healthier to look for a multivitamin that includes iron.