Folate, RBC

A Folate, RBC test offers a crucial, long-term look at your body's vitamin B9 status, providing a more stable measure than a standard serum test. Folate, or vitamin B9, is essential for vital processes like DNA synthesis and the formation of healthy red blood cells. Because folate remains in red blood cells for their full lifespan—about four months—this test helps clinicians monitor your average intake over several months. It is frequently ordered alongside B12 testing to help distinguish between nutritional deficiencies causing symptoms like anemia or fatigue. Understanding your RBC folate levels is key to supporting optimal cell growth and overall metabolic health.