What vitamins are important to red blood cell production?

Folate and folic acid are both forms of B9. Folate occurs naturally in fresh foods, whereas folic acid is the synthetic form found in supplements. Our body needs folate to produce red blood cells, as well as components of the nervous system. It helps in the formation and creation of DNA and maintaining normal brain function, and is a critical part of spinal fluid

Vitamin B12 helps in the formation of red blood cells and in the maintenance of the central nervous system.

Vitamin B12 is the one vitamin that is available only from fish, poultry, meat or dairy sources in food.