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Road-Tested: 5 of the Best Iron Supplements for Pregnant Women in 2026
When you are trying to fall pregnant, you’ll be given a lot of advice about how to be your healthiest self, because you’re preparing your body to grow your baby and want to ensure you’re giving yourself the best chance of success.
Iron supplements might be a product your healthcare provider suggests you take to help keep your iron levels stable during pregnancy. Finding an iron supplement that works well for you is essential, as not all products will be suitable for every pregnant woman. A good way to find the best iron supplement for pregnant women is to start with a good quality iron supplement and see how it feels.
Not sure when your baby is due? Check out our pregnancy due date calculator to get accurate timing for your pregnancy journey.
Check out the list of the Best Iron Supplements for Pregnant Women in 2026:
Why is an iron supplement recommended during pregnancy?
Iron is used by the body to make red blood cells. Your body makes more blood when you’re pregnant because you and your baby are both growing. This means you need more iron when you’re pregnant, to facilitate the manufacture of red blood cells.
What to look for in iron supplements for pregnancy:
High quality:
Iron supplements that come from reputable brands are normally a good place to start when choosing a supplement. The cheapest option may not be the best choice as it could mean they are using cheaper alternatives to the iron sources that will be best absorbed by your body during pregnancy.
Know your body:
Iron is absorbed the best on an empty stomach. Yet, iron supplements can cause stomach cramps, nausea, and diarrhea in some people. You may need to take iron with a small amount of food to avoid this problem. Do your research and decide whether you’re the kind of person who needs to take supplements with a little bit of food to avoid feeling nauseous.
Low constipation:
Some iron supplements can cause constipation, it’s important to research and find an iron supplement that claims to not cause constipation and like with any new supplement - trial it.
1. Perdays Pregnancy Iron & Vitamin C, $16.00
What makes Perdays Pregnancy Iron & Vitamin C different?
The Perdays Pregnancy Iron & Vitamin C is specifically formulated for pregnant women to help support a healthy pregnancy. Our iron supplement with vitamin c pregnancy contains highly bioavailable iron in the form of iron bisglycinate and vitamin C to optimise a healthy pregnancy.
Why try Perdays Pregnancy Iron & Vitamin C?
Features:
Highly bioavailable and absorbable
Contains vitamin C
Each tablet contains 24mg of Iron II glycinate (bisglycinate)
Formulated specifically for Pregnant Women
Vegan
Real customer reviews:
“I really like these iron supplements. Lots of other brands give me an upset stomach and I thought I’d give these a try as I wanted to try the probiotics too. Very glad that I did. Similar price as my previous brand but I like that these have Vitamin C to aid in absorption.” - Angela
2. Kin The Iron Support, $20.00
What makes Kin The Iron Support different?
Iron is an essential mineral for growth, yet 1 in 2 pregnant women experience iron deficiency.
Designed to support you during conception, pregnancy, postpartum or just daily, the formula that makes up Kin as one of the best iron supplement relieves tiredness, supports healthy iron levels and maintains energy production without constipation and nausea.
Why try Kin The Iron Support?
Benefits of Kin The Iron Support:
Bioavailable, non-constipating iron
Help transport oxygen in the body
Supports baby’s development
3. JSHealth IRON+ FORMULA - 1 MONTH SUPPLY, $19.95
What makes JSHealth IRON+ FORMULA different?
Support your energy and vitality with Iron+ by JSHealth. This vegan-friendly formula, containing iron as amino acid chelate, B vitamins, and Vitamin C, is the best iron supplement to take while pregnant.
ENERGY + FATIGUE RELIEF: Iron and Vitamin B2 relieve weariness, tiredness, fatigue, and feelings of weakness when dietary intake is inadequate. Iron helps support the transport of oxygen in the body. Iron supports cognitive and mental function, along with vitality. Iron, Folate, and Mecobalamin support blood health and energy levels. Iron and Vitamins B2 and B6, plus Mecobalamin aid healthy red blood cell production. Vitamin C is an antioxidant that supports immune system health.
Why try JSHealth IRON+ FORMULA?
Features:
Supports energy levels
Relieves tiredness and fatigue when dietary intake is inadequate
Vegan-friendly
Contains B Vitamins
Contains Vitamin C
Low constipation form of Iron
Real customer reviews:
“Love this one, I suffer from low iron and I’ve definitely noticed a difference since using this product, such a great price as well and love that’s it vegan 😊👌” - Marianne
4. The Natal Naturopath IronBiotic, $34.99
Still taking an outdated iron supplement that causes constipation and nausea? Iron vitamins for pregnant just got an upgrade! Eeep! IronBiotic by The Natal Naturopath is a solution your pregnant-self has been searching for.
What makes The Natal Naturopath IronBiotic different?
Constipation and nausea are common symptoms of pregnancy, but they don't need to be. IronBiotic by The Natal Naturopath is a powerful, pregnancy-safe supplements that delivers amazing benefits - including a happier tummy.
How? Thanks to the addition of Lactobacillus Plantarum, an ingredient that supports intestinal flora and healthy digestive function. This alone sets IronBiotic apart from every other iron supplement on the shelves.
Pregnancy + breastfeeding safe, IronBiotic is specifically designed for use during pregnancy and in the postpartum period.
Why try The Natal Naturopath IronBiotic?
If pregnancy has left you feeling a little lethargic and lackluster, a dip in iron production could be behind it. The Natal Naturopath’s IronBiotic iron supplement helps to support energy production and energy levels, support intestinal beneficial flora + healthy digestive system function, and help to decrease homocysteine levels in healthy individuals.
Also, no constipation worries. IronBiotic features the form of iron, 'Iron Bisglcyinate', which is highly absorbable and non-constipating.
Real customer reviews:
"A truly high quality, well thought out ingredient list product! I am feelig so much more energetic after taking IronBiotic every second day for the past month and a half. Have tried a million supplements over the years, but this legitimately holds up to its claims! Thanks for putting the life back in me." - Melissa H
"This is the best iron out there. I’ve had none of the usual side effects that usually come with taking iron (constipation, nausea etc). After only half the bottle I felt my energy levels increasing! I’m onto my second order and recommend it to any health professional that will listen!" - Alice M
5. NaturoBest Iron & Brain Support, $25.99
What makes NaturoBest Iron & Brain Support different?
Throughout pregnancy, one of the biggest bugbears women have, along with morning sickness and swollen ankles - is lack of energy. Half the battle is finding an iron supplement that your body can tolerate and this is where NaturoBest Iron & Brain Support really stands out.
Designed meticulously to support preconception health and a healthy pregnancy, NaturoBest Iron & Brain Support maintains energy levels while supporting healthy foetal development, helping to support haemoglobin synthesis and maintain red blood cell health and supporting brain health and function.
Why try NaturoBest Iron & Brain Support?
The secret is all in the formula, which contains Ferrochel; a patented ingredient that does not cause constipation like most other forms of iron. Neither does it compete with other nutrients, such as zinc, for absorption. Ferrochel® is ionically neutral, so it does not deactivate or block the absorption of other nutrients. This is especially important in multivitamins for gestating mothers and growing children. Ferrochel’s small molecular size allows it to remain intact throughout the G.I. tract for optimal absorption.
NaturoBest Iron & Brain Support includes a high dose of choline, vitamin B12 and folinic acid, making it ideal for vegans, vegetarians, people with a low iron intake from diet and women with heavy periods. What makes it great, is the fact that it works hard to support preconception health and a healthy pregnancy, while maintaining energy levels throughout each trimester. No easy feat!
Real customer reviews:
Great for those with gastro issues with other iron supplements
“Love the vegan iron supplement from NaturoBest. Doesn't leave me constipated like other iron supplements. I recently took a blood test and was shocked my numbers have gone up since my last test 3 months ago. They rarely go up without a blood transfusion. Highly recommend it!” - Leetha, Melbourne
Iron and Brain support
“I purchased this as part of a bundle advised from the NaturoBest team. I love their products been using the preconception multi for 9 months. I have been using the iron and brain support for a week and my concentration seems sharper - thanks so much.” Nikita, Mosgiel, NZ
Disclaimer:
The One Fine Baby team are first and foremost mums - between us we have 25 children, and decades of experience in all things bump, baby and beyond. We regularly bring together our tried, researched and recommended products in a review style format such as this post. The articles include some paid inclusions which goes to helping us keep our audiences informed on the top products happening right here, right now in the parenting space. Please be sure that no product will ever be included in our articles, paid or otherwise, if it doesn’t deserve to be there.
Yes. Iron supplements are commonly recommended during pregnancy because your body needs more iron to support both you and your baby. Taking them can help prevent iron-deficiency anemia, which, if left untreated, can increase the risk of fatigue, low birth weight, or preterm birth. Many prenatal vitamins include iron, but it’s important to talk to your doctor or midwife to find the right type and dose for your needs.
For most pregnant women, iron supplements are both safe and important. They help prevent anemia, support your body’s increased blood supply, and ensure your baby gets enough oxygen. The key is taking the right amount—too little won’t be effective, and too much can be harmful—so always follow your doctor or midwife’s guidance. Iron is usually absorbed best on an empty stomach, but if it upsets your stomach or causes constipation, simple fixes like adding fibre to your diet or using gentle stool softeners can help.
During pregnancy, your body works harder to support both you and your growing baby, which increases your need for iron. Iron is essential for producing extra blood, transporting oxygen, and keeping energy levels up. Taking a supplement can help prevent iron-deficiency anemia, which can lead to fatigue and other complications, and ensure your baby gets the nutrients needed for healthy development. Even if you eat iron-rich foods, supplements are often recommended to meet the extra demand safely.
To get the most from your iron supplement, take it on an empty stomach if you can tolerate it. If it upsets your stomach, a small snack is fine. Pairing your iron with vitamin C—like a glass of orange juice—can boost absorption. Try to avoid coffee, tea, milk, or calcium-rich foods at the same time, as they can make it harder for your body to absorb the iron. Always follow your doctor’s instructions for timing and dosage.
Most pregnant women need about 27 mg of iron per day, but your exact needs can vary. Your doctor might suggest a higher dose if your blood tests show low iron or if you have anemia. It’s important to stick to your healthcare provider’s advice because taking too much iron can cause side effects like constipation, nausea, or stomach upset.
