Prenatal Vitamins Don't Cut it in the Third Trimester

HealFast: Critical Supplements to Promote Optimized Recovery & Better Healing During Childbirth!

Fun Fact: Did you know that a woman's entire blood volume increases by about 50% during pregnancy and that her heart can pump the entire blood volume through the uterine arteries every 7 minutes!?

Mother Pregnant, nutrition is key

The metabolic demands of pregnancy continue to increase throughout the entire pregnancy and extend into the postpartum period as a result of breastfeeding and the mother's healing process. It's no wonder that nutrition, eating habits, and supplements are of paramount importance.

Women are encouraged to eat sensibly and may increase their caloric intake by about 200-300 kcal per day. These calories should come from healthy sources like vegetables, fruits, grains, and lean protein.

Healthy foods for pregnant mom nutritional intake

200-300 calories per day is not really all that much! After all, a portion of mashed potatoes, a bowl of cereal, or a candy bar packs about the same amount of calories; but we know that candy bars and the like, have no useful nutrients and place a high sugar load on your system leading to rebound hunger and fatigue.

Most of this increased caloric intake is needed to feed the baby and maintain the energy requirements of pregnancy.

Nutritional Insufficiency and Potential Deficiency

In the first trimester, nausea and vomiting can cause the loss of both calories and micronutrients at an accelerated rate which makes catching up in subsequent trimesters difficult. This is why essential nutrients, vitamins, minerals, and amino acids get used up rather quickly in pregnancy. [if !supportLineBreakNewLine] [endif]

Added to those demands, the immune system gets weaker during pregnancy as well and often times, the following conditions become present during the third trimester:

[if !supportLists]· [endif]Constipation

[if !supportLists]· [endif]Anemia

[if !supportLists]· [endif]Heartburn

[if !supportLists]· [endif]Insomnia

[if !supportLists]· [endif]Frequent urination

[if !supportLists]· [endif]Fatigue

[if !supportLists]· [endif]Swelling

[if !supportLists]· [endif]Bleeding gums

[if !supportLists]· [endif]Muscle/calf cramping [if !supportLineBreakNewLine] [endif]

Eating a healthy and balanced diet is sometimes difficult due to these third trimester problems because certain foods cause heartburn or constipation.

Often times, Anemia can result due to the increased use of red blood cells and volume of blood which dilutes the amount of hemoglobin circulating. Anemia can cause tiredness, rapid pulse, and shortness of breath. While Iron supplementation helps fight anemia, it often times adds to the constipation.

Using Prenatal Vitamins

Prenatal vitamins are usually prescribed throughout pregnancy with the standard prenatal vitamin formulation containing:

[if !supportLists]· [endif] Iron - 30 mg

[if !supportLists]· [endif] Zinc - 15 mg

[if !supportLists]· [endif] Calcium - 250 mg

[if !supportLists]· [endif] Vitamin B-6 - 2 mg

[if !supportLists]· [endif] Folate - 0.4 mg

[if !supportLists]· [endif] Vitamin C - 50 mg

[if !supportLists]· [endif] Vitamin D - 5 mcg

The types and quantities of micronutrients in prenatal vitamins are rather low given the increased metabolic demands. Numerous studies have evaluated routine supplementation and the conclusions are mixed.

A systematic review of prenatal multi-micronutrient supplementation in pregnancy demonstrated a significant reduction in the risk of low birth weight for mothers taking multiple micronutrients compared with those receiving placebo. [29]

However, there remains much controversy over which and how much of a given micronutrient is most beneficial. The difficulty lies in predicting or identifying those women who become pregnant and are already deficient in critical nutrients.

Foods to Avoid

Certain foods are to be avoided throughout pregnancy and include undercooked meat, raw eggs, liver or liver pate, unpasteurized cheeses, blue-veined, and mold ripened cheeses.

Oily fish such as swordfish, shark, and marlin should be limited due to mercury content in these meatier, longer living fish.

Critical Nutrition needed to optimize Mom's recovery

The process of childbirth, natural or by cesarean, increases metabolic demands and stress on the body significantly. Postpartum healing of an incision from an episiotomy, laceration, or due to an abdominal incision require essential nutrients, anti-oxidants, and healing nutrients to optimize recovery. The risk of wound separation and infections will decrease if adequate supplementation is begun before the labor process. Breast feeding further increases the metabolic demand for energy and micronutrients. Lack of sleep due to nighttime feedings make having good nutrition and taking supplements vital for a fast and complete recovery.

Nutritional Supplements for pregnancy

Let's look at some micronutrient requirements of pregnancy that should be maintained through the completion of lactation.

Vitamin A

Vitamin A, a fat-soluble vitamin, is essential for vision, collagen strength, and wound healing. Plant-based Vitamin A is found in green leafy vegetables and yellow-orange vegetables of the carotenoid group. The non-pregnancy RDA is 700 mcg, and the pregnancy RDA is 770 mcg. The lactation RDA is 1300 mcg. Since most pregnant women do not have well-balanced diets, women who are pregnant or lactating may need routine supplementation. High doses exceeding 15,000 IU/d, are associated with an increased risk of congenital disabilities and should not be used in pregnancy. Alpha-carotene, a vitamin A precursor, is not teratogenic.[9]

Vitamin C

Vitamin C is known as ascorbic acid, with numerous functions including reducing free radicals and assisting in collagen formation and the absorption of iron. [6] The RDA is 75 mg. The pregnancy RDA is 85 mg and increases to 120 mg with lactation. Although routine supplementation is not recommended for those with well-balanced diets, because Vitamin C is water soluble, any excess is efficiently secreted through the kidneys which are functioning at much higher capacity than when non-pregnant. Vitamin C cuts healing time in half! Talk to your doctor, but it appears that supplementation has a considerable upside.


Zinc is essential early in pregnancy for growth and development of the baby. The RDA for a pregnant woman is 11 mg and increases to 12 mg during breastfeeding. Both iron and copper compete with zinc at absorption sites. Zinc supplementation is recommended when elemental iron supplementation exceeds 60 mg/d. Likewise, whenever zinc supplements are used, copper should also be supplemented. Different prenatal vitamin formulations contain varying amounts of copper and zinc.[27]

In preparation for delivery, zinc reduces healing time by 43%, reduces scar formation, and has anti-bacterial properties.


Eighty percent of all people are deficient in magnesium, and its supplementation should be lifelong. In pregnancy, magnesium will help with constipation and muscle cramps.


Quercetin has anti-inflammatory effects by reducing histamine release which is common during the administration of epidural anesthesia. Pain control is improved with quercetin supplementation.


Bromelain has anti-clotting properties which are a great supplement to have during pregnancy because clotting propensity is increased during pregnancy. It also reduces bruising and helps hematomas to resolve more quickly.


Arginine is an essential amino acid that is depleted during times of stress (pregnancy, labor, cesarean). It keeps nitric oxide levels in the normal range for collagen production and wound healing.


Glutamine accounts for 60% of the intracellular pool of amino acids and is the energy source for rapidly dividing cells. Depletion is rapid with injury, labor, or surgery. The whole process of pregnancy is the result of rapidly dividing cells. As an anti-oxidant, it improves healing and decreases wound infections.


It is time to discuss with your doctor the role of a supplement program like Heal Fast. As a retired Obstetrician/Gynecologist, the numerous benefits of HealFast in the last two weeks of pregnancy and for the immediate postpartum period warrant serious consideration and pose a minimal risk due to the short duration and timing of use.


[if !supportLists]1. [endif]ACOG Practice Bulletin No 156: Obesity in Pregnancy. Obstet Gynecol. 2015 Dec. 126 (6):e112-26. [Medline].

[if !supportLists]2. [endif]ACOG Committee Opinion, number 548 Weight Gain During Pregnancy. Obstet and Gynecol. 2013. 121:210-2.

[if !supportLists]3. [endif]Institute of Medicine (US) and National Research Council (US) Committee to Reexamine IOM Pregnancy Weight Guidelines, Rasmussen KM, Yaktine AL. 2009. [Medline].

[if !supportLists]4. [endif]Kominiarek MA. Preparing for and managing a pregnancy after bariatric surgery. Semin Perinatol. 2011 Dec. 35 (6):356-61. [Medline].

[if !supportLists]5. [endif]Hickey CA. Sociocultural and behavioral influences on weight gain during pregnancy. Am J Clin Nutr. 2000 May. 71(5 Suppl):1364S-70S. [Medline].

[if !supportLists]6. [endif]Ladipo OA. Nutrition in pregnancy: mineral and vitamin supplements. Am J Clin Nutr. 2000 Jul. 72(1 Suppl):280S-290S. [Medline].

[if !supportLists]7. [endif]MyPlate Dietary Guidelines. Available at . June 2011; Accessed: November 11, 2016.

[if !supportLists]8. [endif]Institute of Medicine. Nutrition during pregnancy: weight gain and nutrient supplements. Washington, DC: National Academy Press; 1990.

[if !supportLists]9. [endif]Institute of Medicine (US) Panel on Micronutrients. Dietary Reference Intakes for Vitamin A, Vitamin K, Arsenic, Boron, Chromium, Copper, Iodine, Iron, Manganese, Molybdenum, Nickel, Silicon, Vanadium, and Zinc. 2001. [Medline]. [Full Text].

[if !supportLists]10. [endif]Gluckman P, Hanson M, Chong YS, Bardsley A. Oxford University Press; 2014. [Full Text].

[if !supportLists]11. [endif]Holick MF, Chen TC. Vitamin D deficiency: a worldwide problem with health consequences. Am J Clin Nutr. 2008 Apr. 87 (4):1080S-6S. [Medline].

[if !supportLists]12. [endif]ACOG. Committee opinion no. 495: vitamin d: screening and supplementation during pregnancy. Obstet Gynecol. 2011 Jul. 118(1):197-8. [Medline].

[if !supportLists]13. [endif]Garcia AH, Erler NS, Jaddoe VW, Tiemeier H, van den Hooven EH, Franco OH, et al. 25-hydroxyvitamin D concentrations during fetal life and bone health in children aged 6 years: a population-based prospective cohort study. Lancet Diabetes Endocrinol. 2017 Mar 1. [Medline].

[if !supportLists]14. [endif]McCall B. Maternal, Fetal Vitamin D Levels: No Effect on Child Bone Health. Medscape Medical News. Available at March 17, 2017; Accessed: March 31, 2017.

[if !supportLists]15. [endif]Rumbold A, Ota E, Hori H, Miyazaki C, Crowther CA. Vitamin E supplementation in pregnancy. Cochrane Database Syst Rev. 2015 Sep 7. CD004069. [Medline].

[if !supportLists]16. [endif]Suttie JW, Booth SL. Vitamin K. Adv Nutr. 2011 Sep. 2 (5):440-1. [Medline].

[if !supportLists]17. [endif]American Academy of Pediatrics Committee on Fetus and Newborn. Controversies concerning vitamin K and the newborn. American Academy of Pediatrics Committee on Fetus and Newborn. Pediatrics. 2003 Jul. 112 (1 Pt 1):191-2. [Medline].

[if !supportLists]18. [endif]Evans MI, Llurba E, Landsberger EJ, et al. Impact of folic acid fortification in the United States: markedly diminished high maternal serum alpha-fetoprotein values. Obstet Gynecol. 2004 Mar. 103(3):474-9. [Medline].

[if !supportLists]19. [endif]Centers for Disease Control and Prevention. Spina bifida and anencephaly before and after folic acid mandate--United States, 1995-1996 and 1999-2000. MMWR Morb Mortal Wkly Rep. 2004 May 7. 53(17):362-5. [Medline].

[if !supportLists]20. [endif]FDA. FDA Consumer Update: Adding Folic Acid to Corn Masa Flour May Prevent Birth Defects. June 2016. Available at

[if !supportLists]21. [endif]Tofail F, Persson LA, El Arifeen S, Hamadani JD, Mehrin F, Ridout D, et al. Effects of prenatal food and micronutrient supplementation on infant development: a randomized trial from the Maternal and Infant Nutrition Interventions, Matlab (MINIMat) study. Am J Clin Nutr. 2008 Mar. 87(3):704-11. [Medline].

[if !supportLists]22. [endif]US Preventive Services Task Force., Bibbins-Domingo K, Grossman DC, Curry SJ, Davidson KW, Epling JW Jr, et al. Folic Acid Supplementation for the Prevention of Neural Tube Defects: US Preventive Services Task Force Recommendation Statement. JAMA. 2017 Jan 10. 317 (2):183-189. [Medline].

[if !supportLists]23. [endif]Leung AM, Pearce EN, Braverman LE, Stagnaro-Green A. AAP recommendations on io