Your RBC count may become too high or too low if you have certain health conditions, including nutritional deficiencies, erythrocytosis, and some chronic health conditions. A red blood cell count is a ...

A low red blood cell (RBC) count increases the risk of anemia. Ways of boosting RBCs include eating foods that contain iron, vitamins B12 and B9, vitamin C, vitamin A, and copper. Increasing exercise ...