Best Iron Supplements for Pregnancy of 2026

Name: Nature’s Bounty Iron Supplement, 100 Tablets
Brand: Nature's Bounty

Elisa Drew

Last Updated: Jan 23, 2026

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Iron supplements are an essential addition to a pregnant woman's diet. They can help prevent iron-deficiency anemia, which is a common condition during pregnancy. Iron is necessary for the production of hemoglobin, which carries oxygen to the baby and the mother's tissues. Without enough iron, the body cannot produce enough hemoglobin, leading to fatigue, weakness, and shortness of breath. Iron supplements for pregnancy come in different forms, such as tablets, capsules, and liquid. It is important to consult with a healthcare provider before taking any iron supplements to ensure proper dosage and to avoid any potential side effects.

At a Glance: Our Top Picks

#TOP 1

Nature’s Bounty Iron Supplement, 100 Tablets

9.9

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#TOP 2

Thorne Iron Bisglycinate Capsules - 25mg

9.8

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#TOP 3

Slow Fe 45mg Iron Supplement - 60 Count

9.6

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Top 10 Iron Supplements for Pregnancy

#TOP 1 Best Tablet Iron Supplement

Nature’s Bounty Iron Supplement, 100 Tablets

Nature's Bounty
41383

Nature’s Bounty Iron 65mg, 325 mg Ferrous Sulfate, Cellular Energy Support, Promotes Normal Red Blood Cell Production, 1 Serving Per Day, Gluten Free, 100 Vegetarian Tablets

Nature's Bounty Iron is a necessary component of hemoglobin, promotes normal red blood cell production, and supports energy utilization, making you feel your best. It is often recommended as a mineral supplement for women and helps provide your body with the iron it needs for daily functioning. This product is a result of 50 years of dedication to quality, consistency, and scientific research.

9.9

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What We Like

Improved energy levels
Easy to swallow tablets
Reasonable price
Trusted brand
Effective iron dosage

#TOP 2 Best Vegetarian Iron Supplement

Thorne Iron Bisglycinate Capsules - 25mg

THORNE
M226
Original Version

THORNE - Iron Bisglycinate - 25 mg Iron Supplement for Enhanced Absorption Without Gastrointestinal Side Effects* - NSF Certified for Sport - Gluten-Free - 60 Servings

Thorne Iron Bisglycinate Capsules provide 25mg elemental iron in a non-constipating form that is well-absorbed by the body. It helps fight fatigue and other signs of iron deficiency such as weakness, dizziness, and irritability. The mineral is essential for the formation of new red blood cells, and it is certified for sport, making it ideal for high-performance nutrition programs.

9.8

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What We Like

Gentle on stomach
No unpleasant aftertaste
Improved energy levels
Easy to swallow capsules
High absorption rate

#TOP 3 Best Easy Swallow Iron Supplement

Slow Fe 45mg Iron Supplement - 60 Count

Slow Fe
1960

Slow Fe 45mg Iron Supplement for Iron Deficiency, Slow Release, High Potency, Easy to Swallow Tablets - 60 Count

Slow Fe 45mg Iron Supplement is a high-potency, slow-release iron tablet that is easy to swallow and formulated for daily use. It is a non-constipating iron supplement, designed to reduce digestive side effects. Doctors recommend this product as a treatment for iron deficiency anemia. The special controlled release system delivers iron slowly to your body, causing fewer digestive side effects. Take one tablet every day to increase your iron intake.

9.6

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What We Like

Gentle on sensitive stomachs
Slow-release formulation
Improves iron and energy levels
Easy to swallow pill
Trusted, reliable brand

#TOP 4 Best Liquid Iron Supplement

Geritol Liquid Vitamin and Iron Supplement

Geritol
20346017011122
Brown

Geritol Liquid Vitamin and Iron Supplement, Energy Support, Contains High Potency B-Vitamins and Iron, Pleasant Tasting, Easy to Swallow, No Artificial Sweeteners, Non-GMO, 12 Oz

Geritol Iron Supplement is a trusted brand for over 70 years and is designed for adults and children aged 12 years and older who need energy support. This liquid iron supplement and multivitamin contains high potency B-vitamins B1, B2, and B6, which help with the metabolism process of turning food into fuel. It also contains 100% of your body's daily value of iron, which is necessary to help your blood move oxygen throughout your body. Geritol Liquid is non-GMO, contains no artificial sweeteners, and is easy to take, with a pleasant taste. Simply take 1 tablespoon daily after a meal. With Geritol Iron Supplement, you can replenish your essential vitamins and minerals daily, leaving you feeling energized and ready to tackle your day.

9.4

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What We Like

Significant energy boost
Improves iron levels
Helps with fatigue
Easy to swallow
Supports hair and nail strength

#TOP 5 Best Vitamin C Iron Supplement

Vitron-C High Potency Iron Supplement

Vitron-C
012301

Vitron-C Multivitamin Tablet 63736012301 1 Bottle, 60 per Bottle

Vitron-C is a high potency iron supplement that boosts energy by fighting fatigue in users with low iron levels. Its 65mg of elemental iron and 125mg of Vitamin C support a healthy immune system and gentle iron absorption to minimize constipation, using one iron pill daily. It is dye-free, gluten-free, vegan with no artificial colors or flavors.

9.4

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What We Like

No stomach upset
Improved energy levels
Easy to swallow
Iron and Vitamin C combo
No constipation

#TOP 6 Best Vitamin B12 Iron Supplement

Thorne Ferrasorb - Blood-Building Formula - 60 Capsules

THORNE
SF750

THORNE - Advanced Iron Complex (Formerly Ferrasorb) - Complete Blood Support Formula* - Elemental Iron, Folate, B and C Vitamins for Optimal Absorption - Gluten, Dairy & Soy-Free - 60 Servings

Thorne Ferrasorb is an optimal blood-building supplement that provides 36 mg of well-absorbed iron per capsule, combined with essential nutrients such as vitamin C, B6, B12, and folate for optimal absorption. This supplement helps to increase iron levels and alleviate symptoms of iron deficiency, such as fatigue, dizziness, and loss of libido. Thorne Ferrasorb is free from common allergens like gluten, soy, and dairy, and is trusted by over 100 pro teams and 11 U.S. Olympic teams.

9.4

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What We Like

Easy on stomach
No constipation
Small capsule size
Increases energy levels
Effective for iron deficiency

#TOP 7 Best Vegan Iron Supplement

MegaFood Blood Builder Minis - Iron Supplement Vegan - 72 Tabs (36 Servings)

MegaFood
10427

MegaFood Blood Builder Iron Supplement for Women & Men - Increase Iron Levels Without Side Effects - Combats Fatigue - Vitamin B12, Folic Acid & Vitamin C - Vegan - 72 Mini Tablets (36 Servings)

MegaFood Blood Builder Minis is an iron supplement that can increase iron levels in your body without causing nausea or constipation. It delivers 26 mg of iron and includes folic acid and B12 for healthy red blood cell production. The product is safe for menstruating and pregnant women, teenage girls, vegans, and vegetarians. It is crafted using Slo-Food Process and includes Beet Root and Vitamin C delivered with natural oranges to aid absorption. The supplement is non-GMO Project Verified, free of gluten, dairy, and soy, and certified kosher. MegaFood works with trusted farm partners who share their commitment to natural and regenerative agriculture.

9.2

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What We Like

gentle on stomach
improves iron levels
no constipation
supports energy and recovery
easy to swallow

#TOP 8

OLLY Delightful Iron Chewable Tablets

OLLY

OLLY Delightful Iron Chewable Tablet, Iron Supplement from AB Fortis, Fruit Punch Flavored, 30 or 20 Day Supply - 60 Count

The OLLY Iron Chewables are a tasty and effective way to boost your iron levels, helping to fight tiredness and low energy caused by iron deficiency. These tablets use a special AB Fortis iron that’s gentle on your stomach, so you’re less likely to experience common digestive issues. They come in a fun Fruit Punch flavor, making them easy and enjoyable to take daily. Whether you’re 4 years or older, or even pregnant or nursing, these chewable tablets can fit into your routine to support your energy and overall well-being.

9.1

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What We Like

Gentle on stomach
Fruit Punch flavor
Supports energy levels
Suitable for ages 4
Doctor trusted formula

#TOP 9

Floradix Iron & Herbs Vegetarian Liquid Supplement

Floradix
0850026260090
No Color

Floradix Iron & Herbs - Liquid Herbal Supplement for Energy Support - Iron Supplement with Vitamin C & Vitamin B Complex - for Men & Women - 8.5 fl oz

Floradix Iron & Herbs is a liquid iron supplement that provides 10mg of iron with B complex vitamins, rose hip vitamin C, and herbal extracts. It is easy to absorb, non-GMO, vegetarian, lactose-free and kosher. It is an excellent source of energy for both women and men.

8.9

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What We Like

Increased energy levels
Gentle on stomach
No constipation
Improved hair and skin
Easy absorption

#TOP 10 Best Iron-Free Iron Supplement

Pure Encapsulations Iron-C Supplement

Pure Encapsulations

Pure Encapsulations Iron-C - 15 mg - 175 mg Vitamin C - Red Blood Cell Support* - Energy Production - Highly Bioavailable Iron Pill - Gluten Free & Vegan - 60 Capsules

Pure Encapsulations Iron-C Supplement is a premium quality iron and vitamin C supplement that supports optimal muscle function, manufacture of myoglobin for muscle contractions, enhanced absorption of iron, and immune support. The product is made with only premium ingredients sourced from trusted suppliers, and it is free from wheat, eggs, tree nuts & peanuts, gluten, GMOs, and unnecessary binders, fillers & preservatives.

8.7

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What We Like

Gentle on stomach
No bad taste or smell
Small, easy-to-swallow capsules
Noticeable energy improvement
Good absorption and quality

Frequently Asked Questions (FAQs)

1. Are iron supplements safe for pregnancy?

The bottom line: For most women, iron supplementation is safe during pregnancy. However, not every mom-to-be needs extra iron, especially since the mineral is already in most prenatal vitamins and can be found in certain foods. As always, talk to your practitioner before adding any new supplements to your diet.

2. What type of iron is best for pregnancy?

Heme iron has a higher bioavailability, and the body can absorb it more easily. Nonheme iron is the most important dietary source of iron for vegans and vegetarians. However, it has a lower bioavailability, and there are more factors affecting its absorption.

3. When should a pregnant woman start taking iron?

An appropriate time to begin iron supplementation at a dose of 30 mg/day is after about week 12 of gestation (the beginning of the second trimester), when the iron requirements for pregnancy begin to increase.

4. How much iron should a pregnant woman take?

Pregnant women need 27 milligrams of iron daily. Low iron during pregnancy can lead to anemia, so do your best to get enough iron through iron-rich foods or supplements.

Editor's Notes

During our iron supplement for pregnancy research, we found 24 iron supplement for pregnancy products and shortlisted 10 quality products. We collected and analyzed 553,138 customer reviews through our big data system to write the iron supplements for pregnancy list. We found that most customers choose iron supplements for pregnancy with an average price of $17.93.

The iron supplements for pregnancy are available for purchase. We have researched hundreds of brands and picked the top brands of iron supplements for pregnancy, including Nature's Bounty, THORNE, Slow Fe, Geritol, Vitron-C. The seller of top 1 product has received honest feedback from 384 consumers with an average rating of 4.7.

Written by

Elisa Drew

Elisa Drew is a really professional copywriter specializing in baby products with five years of experience working as a pediatrician once. She has published a series of baby books purchased by over thirty thousand people in the United States.