10 Best Iron Supplements For Pregnancy And Iron Deficiency, 2023

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Iron is one of the essential minerals required by the human body. If you are pregnant or iron deficient, your healthcare provider may recommend the best iron supplements for pregnancy. Foods such as spinach, broccoli, lentils, beans, pumpkin seeds, dried fruits, shellfish, red meat, and poultry are quality iron sources, and you can get your required amount of iron by adding these to your diet. However, you may have to take supplements during pregnancy or if you are at a risk for iron-deficiency. The US CDC (Centers for Disease Control and Prevention) suggests that women, especially pregnant women, take a dose of oral iron supplements (of 30mg/day) after their first prenatal appointment (1).

Read this post as we list some iron supplements that experts generally recommend as part of pregnancy nutrition. However, before you purchase them, note that you should consult your physician or dietician.

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Things To Remember While Using Iron Supplements

  • Never consider buying OTC supplements without consulting your physician or certified gynecologist.
  • Ask your doctor about the dosage: how many tablets you should take and when to take them.
  • Ideally, it is recommended that you take them one to two hours before or after meals as they are absorbable on an empty stomach.
  • Do not take along with foods such as milk, tea, coffee, cheese, eggs, spinach, whole grains, and yogurt, as these might deplete the supplements’ value.
  • Iron supplements may interfere with certain medications. So inform your healthcare professional about the other medicines you are taking.
  • Do not take more than the recommended dosage.

10 Iron Supplements For Pregnancy

1. Best For Fatigue: Mega Food Blood Builder

As per a clinical study, Blood Builder from Mega Food has been shown to combat fatigue and increase energy levels without causing constipation or nausea. The supplement also contains beetroot and orange extracts that promote iron absorption. It could be taken on an empty stomach at any time of the day. For more information about the product, click this video review to explore a tester’s experience.

Product Dimensions: 2 x 2 x 2 inches | Weight: 1 Pounds


  • Made with farm-fresh whole foods
  • Improves digestion
  • Offers folic acid, vitamin B12, and vitamin C
  • Free of gluten, soy, and dairy
  • Safe for menstruating women and teenage girls
  • A good option for vegans and vegetarians
  • Tested for more than 125 chemical substances


  • May have a strange taste

protip_icon Point To Consider
Unless directed otherwise by a doctor, taking iron supplements with vitamin-C-rich foods, such as kiwi and tomatoes, can help increase iron absorption from the supplement.

Why We Think It's Worth Buying

This product is a hit with users, evidenced by the 21,262 fine reviews on Amazon.

2. Best For Hemoglobin: Zahler’s Iron Complex

Zahler’s Iron complex claims to be a complete blood-building iron supplement containing all the nutrients needed for hemoglobin formation and production of RBCs. It contains Ferrochel, an effective form of iron. This supplement meets the highest nutraceutical standards and is manufactured in a GMP-certified facility. Check this video to learn more about the product as a reviewer shares their experience after testing the supplement.

Item Weight: 74 Grams | Product Dimensions: 4 x 2.1 x 2.1 inches | Weight: 2.61 Ounces


  • Easy on the stomach
  • Easily absorbed
  • Helps address anemia during pregnancy
  • Contains B12, folic acid, and sufficient iron
  • Gives better results when taken along with food


  • Magnesium in the supplement may cause gas and bloating in some
  • May taste strange

3. Best Natural Extracts: Floravital Liquid Iron Supplement

Floradix offers a liquid iron supplement for pregnancy. Made from natural herbal extracts and fruit juices, this palate-pleasing supplement helps prevent and manage iron deficiency by promoting hemoglobin production. This nutritious tonic is suitable for nursing, menstruating, and athletic women and also for men and growing children.

Product Dimensions: 6 x 5 x 4 inches | Weight: 3.53 Ounces


  • Yeast and gluten-free formula
  • Herbal extracts and fruit juices offer it a good taste
  • Free of alcohol, lactose, and dairy
  • Low-dose supplement
  • Has no artificial colors or flavors
  • Formulated with no preservatives


  • Bottle may not be leak-proof
  • May cause nausea
Mega Food Blood Builder
Best For Fatigue
Zahler’s Iron Complex
Best For Hemoglobin
Floravital Liquid Iron Supplement
Best Natural Extracts
Dimensions 2 x 2 x 2 inches 4 x 2.1 x 2.1 inches 6 x 5 x 4 inches
Weight 1 Pounds 2.61 Ounces 3.53 Ounces
Weight- 74 Grams-

4. Best For Everyday Use: Slow Fe Iron Supplement Tablets

Slow Fe Iron Supplement Tablets Image: Slow Fe®

One of the doctor-recommended iron supplements, this provides sufficient iron to improve the transfer of oxygen via blood. Iron is present in the form of ferrous sulfate that is easily absorbable. It is formulated for everyday iron intake.

Number of Items: 1 | Product Dimensions: 3 x 1 x 5 inches | Weight: 0.63 Ounces


  • Easy-to-swallow
  • Gentle on the stomach
  • Widely available and a budget-friendly option
  • Slow-release iron formula good for the gastrointestinal system


  • May cause stomach problems for those having a sensitive stomach
  • May not be effective for everyone

5. Best Gluten-Free: Pink Stork Total Iron Supplement

Pink Stork Total Iron Supplement Image: Pink Stork

Pink Stork Total Iron supplement for women contains iron bisglycinate and vitamin C to reduce fatigue and improve concentration, blood production, energy levels, and sleep. The pregnancy-safe vegetarian capsules also support oxygen transportation from your lungs to the rest of the body and boost immunity. The supplement is free of gluten, wheat, dairy, soy, or GMOs.


  • May help relieve gastrointestinal issues and ease nausea
  • Safe for pregnant and breastfeeding women
  • Doesn’t have a strong taste
  • cGMP-certified


  • May not be suitable for people with gastritis

6. Best Absorbing: Triquetra Health Ionic Liquid Iron Supplement

Triquetra Health Ionic Liquid Iron Supplement Image: Triquetra Health

Here is another safety-tested liquid iron supplement for pregnancy that offers the ionic form of iron. This pregnancy-safe bio-available form of iron is made from earth-sourced minerals that allow a smaller dosage iron intake. Formulated for one to two doses per day, it is produced in cGMP-certified facilities.

Product Dimensions: 1.5 x 1.5 x 4 inches | Weight: 4.59 Ounces.


  • Easily absorbable
  • Free of artificial flavors and ingredients
  • Improves blood health and energy levels
  • Improves fingernail and hair health
  • Vegan-friendly supplement


  • The taste may not be appealing
  • May not work in case of severe anemia

7. Best Berry-Flavored: MaryRuth’s Iron Supplement Prenatal & Postnatal

MaryRuth’s Iron Supplement Prenatal & Postnatal Image: Mary Ruth

Why We Think It's Worth Buying

With over 824 reviews on Amazon, this product is a winner.

This liquid iron supplement by MaryRuth contains ferrous bisglycinate chelate, a type of iron that is more absorbable and tolerable than iron salts. The nutritious, berry-flavored supplement is beneficial for your immune health and helps maintain oxygen levels. It is specially formulated and recommended for expectant mothers and new moms. Moreover, this is also beneficial for the baby’s cognitive development.


  • Non-GMO and vegan
  • Free of dairy, nuts, gluten, wheat, soy, corn, nightshades, and sugar
  • Helps improve cellular health
  • Made in a GMP facility


  • Some may not like the smell
  • Might stain your teeth slightly
protip_icon Point To Consider
Calcium may interfere with iron absorption in the gut (4). So, it is advisable to take iron supplements at least two hours before or after taking calcium.

8. Best Digestible: Fusion Lifestyle Soft Chews

Fusion Lifestyle Soft Chews Image: Fusion Lifestyle

Why We Think It's Worth Buying

The tried-and-true product has earned over 4,918 good reviews on Amazon.

Fusion lifestyle soft chews are pregnancy-safe chewable iron supplements with a tasty cherry flavor. They contain optimal amounts of iron and vitamin C and could reduce the risk of fatigue and anemia during pregnancy. These palate-pleasing supplements have a candy-like texture and taste.


  • Easy-on-the stomach, and easily digestible
  • Causes no gastrointestinal problems
  • Free from gluten and sugar
  • Easily absorbable
  • A budget-friendly option that would serve for two months


  • Some may find them hard to chew
  • The intense cherry flavor may cause nausea in some

9. Best Non-Constipating: Natures Nectar Iron Booster


A scientifically proven natural iron supplement for pregnancy, this one is packed with iron, folic acid, vitamin B12 and C. Iron is present in the form of ferrous fumarate, which makes it a non-constipating formula. The recommended dosage is one per day.

Product Dimensions: 1.98 x 1.98 x 4.1 inches | Weight: 1.28 Ounces


  • Gentle on the stomach
  • Easily absorbable
  • Made with plant-based natural ingredients
  • Free from flavors, sweeteners, and preservatives
  • Aids hemoglobin formation
  • Improves energy levels


  • May cause digestive problems in some
  • Ferrous fumarate may offer a low iron dose

10. Best For Immunity: Active Iron High Potency Iron Supplement

*The prices provided in this article are based on the latest available information. However, they may vary due to changes in pricing by the seller and/or promotional offers.

Active Iron High Potency supplements are said to be clinically proven to enable better absorption of iron and are formulated to support sufficient iron levels and boost immunity. The non-constipating formula contains 25 milligrams of elemental iron, which is around 138% of daily recommended minimal value.

Product Dimensions: 5.51 x 3.62 x 1.97 inches | Weight: 2.24 Ounces


  • Causes no gastrointestinal problems
  • Can be taken on an empty stomach
  • Specially formulated to reduce nausea, reflux, and constipation
  • Free from gluten, sugar, and artificial preservatives
  • Suitable for vegetarians


  • May cause constipation or gastric discomfort in some
  • May not work for those at risk for iron-deficiency or have anemia

How To Choose The Right Iron Supplements?

Apart from consulting a certified gynecologist or nutritional and fitness expert for personalized guidance, here is a list of points to consider while selecting iron supplements for pregnancy.

  1. Iron content: Ensure the supplement has sufficient iron content to maintain your daily requirement. While we get iron from different vegetables and other sources, it might not be enough to meet your iron needs. So, check the iron content and consult your doctor to find a suitable supplement.
  2. Composition: The iron supplements come in different forms, including tablets, capsules, soft chews, and syrups. If you have difficulty swallowing pills, it might be a good idea to opt for liquid supplements or chews.
  3. Ingredients: Many iron supplements include vitamins like vitamin B12 and vitamin C. Vitamin C helps absorb iron whereas vitamin B can prevent congenital disorders. Moreover, many healthy pregnancy supplements are made of organic, plant-based ingredients for easy digestion and safety. So, choose a suitable supplement as per your needs.
  4. Iron type: There are various kinds of iron sources in supplements which include ferrous fumarate, elemental iron, ferrous sulfate, etc. Some types might suit you better than the others. Therefore, discuss it with a certified physician or healthcare professional before buying one.

Why Trust MomJunction?

We have listed the best iron supplements for pregnant women with iron deficiency to meet their increased iron requirements during pregnancy. After looking through different products, we bring you vegan and vegetarian-friendly dietary supplements to suit your needs. We have also mentioned other features, such as gluten-free and easily digestible, to help you make the right choice. The post also includes tips to remember when having supplements for your safety.

Frequently Asked Questions

1. Is it safe to take an iron supplement while pregnant?

It is essential to consume iron supplements during pregnancy. Physicians recommend iron supplements, especially for people with anemia during pregnancy, as severe anemia may lead to complications in pregnancy (1).

2. What is the best form of iron supplement to take?

You can get iron from your diet by consuming iron-rich foods like meat, millet, chickpeas, tuna, shrimp, and more (1). However, experts recommend consuming prescribed iron supplements in tablets and drops form during pregnancy.

3. How can I raise my iron levels quickly while pregnant?

You can boost iron levels by consuming iron-rich foods like meat, fish, chicken, leafy vegetables, dried beans, and more. Iron found in meat has greater absorption than iron found in vegetables (2).

4. How much iron should I take in supplement form?

You can consume 20 to 30 mg per day if you are pregnant or breastfeeding (1). However, vegetarians or vegans may not get the required amount of iron through diet alone.

5. Is it okay to take iron supplements every day?

Yes, it is necessary to take iron supplements every day, especially when you are anemic. However, consult your doctor before taking even pregnancy-safe iron supplements as overdosing may cause side effects (1).

6. What can I take with iron supplements to avoid constipation?

Hard and black stools are common while taking iron supplements. So, ask your healthcare professional to prescribe a softener to minimize the chances of constipation (3).

7. How do I know if I have iron deficiency during pregnancy?

Iron deficiency may make you feel weak. However, pregnant women are asked to run blood tests that confirm iron levels (1).

The Bottom Line

Iron is an essential mineral that our body needs. Doctors prescribe iron supplements to pregnant women to meet their increased daily iron intake requirements. Likewise, these dietary supplements also help meet your iron requirements when your foods don’t provide your body with enough iron and you’re deficient in this mineral. Therefore, we recommend the Floravital Liquid Iron Supplement, made of pure herbal extracts, and the Slow Fe Iron Supplement Tablets, which are gentle on the stomach and suitable for daily use. However, picking an iron supplement of a suitable dosage is essential to ensure you’re not overdosing or underdosing. So, you should consult your healthcare professional before taking dietary supplements to determine the correct dosage.

Infographic: Tips To Follow When Consuming Iron Supplements

Iron supplements help maintain the iron level in your body and help lower the chances of developing anemia. They are often found in the form of ferrous or ferric sulfate and should be consumed in an optimal dosage to reap their benefits. Here’s an infographic with the dos and don’ts of iron consumption.

Dos And Don’ts When Taking Iron Supplements

Illustration: Momjunction Design Team

Get high-quality PDF version by clicking below.

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Download Infographic in PDF version


MomJunction's articles are written after analyzing the research works of expert authors and institutions. Our references consist of resources established by authorities in their respective fields. You can learn more about the authenticity of the information we present in our editorial policy.

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