PreferaOB ONE® key nutrients at a glance


During pregnancy, your body has an entirely new set of needs. It's essential that you—and your growing baby—get the nutrition you both need to help ensure a safe and healthy delivery.

The following chart lists some important dietary considerations for pregnant women. You can print it out to keep as a reference. It's a handy tool to help start a dialog with your doctor about how choosing the prenatal vitamin product can help contribute to your health, and the health of your developing baby.


Iron derived from animal sources like meats, fish, and poultry.1


When heme iron is included in supplements that also contain nonheme iron, the resulting complex can be less likely to cause constipation or gastrointestinal side effects.2


Iron that's found in plants like lentils and beans, and that is added to certain iron-enriched and iron-fortified foods.1


When combined, the heme and nonheme iron found in PreferaOB ONE® act together to increase overall iron absorption by 40%, and help maintain energy and combat fatigue by stabilizing iron levels.3-5


A vitamin naturally present in many foods that's involved in more than 100 metabolic enzyme reactions.6


Can help ease pregnancy-related nausea and vomiting.7,8 Plays a key role babies' development, including9:

  • Normal physiological function
  • Supporting macronutrient metabolism
  • Red blood cell, antibody, and neurotransmitter synthesis


A synthetic form of folate found in many commercially available foods and supplements.10 Folate is a B vitamin that occurs naturally in green leafy vegetables, like spinach and collard greens, and citrus fruits.


Can reduce the risk of neural tube defects in developing babies.10,11


An omega-3 fatty acid found in cold-water fish like salmon.12


Shown to significantly increase length of gestation, helping women carry fetuses to a healthy or full term.13,14 Also essential for13:

  • Normal fetal growth
  • Neurologic development and function
  • Learning and behavioral development

INDICATIONS AND USAGE: PreferaOB ONE® is a prescription multivitamin/multimineral nutritional supplement with Omega-3 fatty acid (life'sDHA™) indicated for use in improving the nutritional status of women throughout pregnancy and in the postnatal period for both lactating and non-lactating mothers. PreferaOB ONE® is also beneficial in improving the nutritional status of women prior to conception.


WARNING: Accidental overdose of iron-containing products is a leading cause of fatal poisoning in children under 6. Keep this product out of reach of children. In case of accidental overdose, call a doctor or poison control center immediately.

CONTRAINDICATIONS: This product is contraindicated in patients with a known hypersensitivity to any of the ingredients.

WARNING: Ingestion of more than 3 grams of Omega-3 fatty acids per day has been shown to have potential antithrombotic effects, including an increased bleeding time and International Normalized Ratio (INR). Administration of Omega-3 fatty acids should be avoided in patients taking anticoagulants and in those known to have an inherited or acquired predisposition to bleeding diathesis.

PRECAUTIONS: Folic acid when administered as a single agent in doses above 0.1 mg daily may obscure pernicious anemia in that hematological remission can occur while neurological manifestations remain progressive. Pregnant women and nursing mothers should avoid supplemental doses of vitamin E higher than RDA amounts. While prescribing this nutritional supplement for pregnant women, nursing mothers, or for women prior to conception, their medical condition and other drugs, herbs, and/or supplements consumption should be considered.

ADVERSE REACTIONS: Allergic sensitization has been reported following both oral and parenteral administration of folic acid.

You are encouraged to report negative side effects of prescription drugs to the FDA.
Visit or call 1-800-FDA-1088.

Please see Full Prescribing Information.


1. National Institutes of Health. Office of Dietary Supplements. Dietary supplement fact sheet: iron. Accessed April 3, 2012. 2. Frykman E, Bystrom M, Jansson U, Edberg A, Hansen T. Side effects of iron supplements in blood donors: superior tolerance of heme iron. J Lab Clin Med. 1994;123(4):561-564. 3. Lee KA, Zaffke ME. Longitudinal changes in fatigue and energy during pregnancy and the postpartum period. J Obstet Gynecol Neonatal Nurs. 1999;28(2):183-191. 4. Zimmerman MB, Hurrell RF. Nutritional iron deficiency. Lancet. 2007;370(9586):511-520. 5. Ekman M, Reizenstein P. Comparative absorption of ferrous and heme-iron with meals in normal and iron deficient subjects. Z Emahrungswiss. 1993;32(1):67-70. 6. National Institutes of Health. Office of Dietary Supplements. Dietary supplement fact sheet: vitamin B6. QuickFacts. Accessed April 3, 2012. 7. Davis M. Nausea and vomiting of pregnancy: an evidencebased review. J Perinat Neonatal Nurs. 2004;18(4):312-328. 8. American College of Obstetrics and Gynecology. ACOG (American College of Obstetrics and Gynecology) Practice Bulletin: nausea and vomiting of pregnancy. Obstet Gynecol. 2004;103(4):803-814. 9. Office of Dietary Supplements. National Institutes of Health. Dietary supplement fact sheet: vitamin B6 for healthcare professionals. http:// Updated September 15, 2011. Accessed December 7, 2011. 10. US Department of Health and Human Services. Office on Women’s Health. Frequently asked questions: folic acid. Updated May 18, 2010. Accessed December 7, 2011. You'll need the Adobe® Acrobat® Reader in order to view this document. You can download it for free here 11. The American Congress of Obstetricians and Gynecologists. Frequently asked questions: healthy eating. FAQ130. Published August 2011. Accessed December 7, 2011. You'll need the Adobe® Acrobat® Reader in order to view this document. You can download it for free here 12. University of Maryland Medical Center. Medical reference: docosahexaenoic acid. docosahexaenoic-acid-000300.htm. Last reviewed September 20, 2010. Accessed April 3, 2012. 13. Hibbeln JR. Seafood consumption, the DHA content of mothers' milk and prevalence rates of postpartum depression: a cross-national, ecological analysis. J Affect Disord. 2002;69(1-3):15-29. 14. Smuts CM, Huang M, Mundy D, Plasse T, Major S, Carlson SE. A randomized trial of docosahexaenoic acid supplementation during the third trimester of pregnancy. Obstet Gynecol. 2003;101(3):469-479.