Normal Reference Range for Folic Acid in Pregnant Women
May 22, 2022
Source: Cainiu Health
Dr. Chen Zhe
Introduction
The normal folate level in pregnant women ranges from 15 to 54 nmol/L. Folate, also known as vitamin B9, is a water-soluble vitamin. A daily dose of 0.4 mg of folate is used to prevent neural tube defects in the fetus, whereas 5 mg is prescribed for the treatment of anemia. Therefore, pregnant women should select the appropriate folate dosage based on its intended use. Although folate is widely present in both plant- and animal-derived foods, supplementation may still be necessary.
Folic acid, also known as vitamin B9, is a water-soluble vitamin. A daily dose of 0.4 mg of folic acid is recommended to prevent neural tube defects in the fetus. What, then, is the normal reference range for folic acid levels in pregnant women?
Normal Folic Acid Reference Range in Pregnant Women
The normal serum folic acid concentration in pregnant women ranges from 15 to 54 nmol/L. Folic acid—also referred to as vitamin B9—is a water-soluble vitamin. A dosage of 0.4 mg/day is used for the prevention of fetal neural tube defects, whereas 5 mg/day is typically prescribed for the treatment of anemia. Therefore, when selecting folic acid supplements, pregnant women should choose the appropriate dosage based on their specific needs. Although folic acid is widely present in both plant- and animal-derived foods, it is particularly abundant in animal livers. However, naturally occurring folate is relatively unstable and highly susceptible to degradation—especially oxidation—during cooking and heating.
During pregnancy, women should consume high-quality protein-rich foods such as eggs, milk, lean meat, and beef. Additionally, they should ensure adequate intake of foods rich in vitamins and trace elements—including citrus fruits (e.g., oranges and tangerines), bananas, apples, leafy greens (e.g., spinach and Chinese cabbage), celery, mushrooms, enoki mushrooms, and tofu. Whole grains—including millet, rice, buckwheat flour, oat flour, and other cereals—should also be incorporated regularly into the diet. Achieving balanced nutrition benefits both maternal health and fetal development.
Consequently, dietary sources provide only minimal amounts of bioavailable folic acid, and natural folate has relatively low bioavailability. Thus, women are advised to supplement with folic acid appropriately and adequately during the preconception and pregnancy periods. We hope this article has been helpful to you!
