Folate

Folate is a B vitamin essential for DNA synthesis, cell division, and red blood cell formation. Your body cannot make folate, so it must come from foods like leafy greens, legumes, and fortified grains. Low folate levels can cause anemia, fatigue, and neurological problems. During pregnancy, adequate folate is critical for fetal development. High folate levels are rare but may suggest certain health conditions. This test screens for deficiency, which is common in vegetarians, people with malabsorption disorders, and those taking certain medications.