Skip to main content

Top 9 Best Iron Supplements for Sensitive Stomach

UpdatedFebruary 22, 2024

Iron is an essential mineral that our bodies need to function correctly. It is responsible for carrying oxygen throughout the body, supporting the immune system, and aiding in the production of red blood cells. Unfortunately, many people have trouble absorbing iron, leading to anemia, fatigue, and other health issues. For those with sensitive stomachs, finding the right iron supplement can be a challenge.

When choosing an iron supplement for sensitive stomachs, there are a few critical factors to consider. First and foremost, the supplement should be gentle on the digestive system, causing minimal discomfort or irritation. It should also be highly absorbable to ensure that the body can effectively utilize the iron. Additionally, the supplement should be free from common allergens and irritants, such as gluten, dairy, and artificial colors or flavors.

After researching and testing various iron supplements, we have identified the best options for those with sensitive stomachs. These supplements are specifically formulated to be gentle on the digestive system while providing highly absorbable iron. In the following sections, we will provide an in-depth review of each product, including its ingredients, benefits, and potential drawbacks. By the end of this article, you'll have all the information you need to make an informed decision and choose the best iron supplement for your sensitive stomach.

Top 3 Best Iron Supplements for Sensitive Stomachs

  1. MegaFood Blood Builder - Iron Supplement
  2. Slow Fe 45mg Iron Supplement for Iron Deficiency
  3. Nutricost Iron (As Ferrous Sulfate)

If you're someone with a sensitive stomach, you know that finding the right iron supplement can be a challenge. Many iron supplements can cause digestive discomfort, such as nausea, constipation, and stomach cramps. That's why we've researched and tested a variety of iron supplements to find the best options for those with sensitive stomachs. Below are our top picks for the best iron supplements that are gentle on the stomach.

MegaFood Blood Builder - Iron Supplement

Editor's Choice

MegaFood Blood Builder offers a potent iron supplement for optimal blood health. With its whole-food ingredients and gentle-on-the-stomach formulation, it stands out as a trusted choice for those seeking natural, effective iron support.

See price on Amazon

If you're looking for a gentle iron supplement that won't cause any side effects, then you should definitely consider MegaFood Blood Builder.

Pros

  • Clinically shown to increase iron levels without side effects
  • Formulated with vitamin C and beet root for better absorption
  • Includes folic acid and vitamin B12 for healthy red blood cell production

Cons

  • May take longer to see results compared to other iron supplements
  • Some users may experience mild gastrointestinal discomfort
  • Not suitable for people with hemochromatosis or other iron overload conditions

We've been using MegaFood Blood Builder for a few months now, and we're happy to report that it's been an effective iron supplement for us. We appreciate that it's gentle on our stomachs and doesn't cause any of the typical side effects associated with iron supplements.

One of the things we like about MegaFood Blood Builder is that it's formulated with vitamin C and beet root, which helps with iron absorption. We also appreciate that it includes folic acid and vitamin B12, which are important for healthy red blood cell production.

While it may take a bit longer to see results compared to other iron supplements, we think it's worth the wait. Some users may experience mild gastrointestinal discomfort, but we haven't had any issues personally.

Overall, we highly recommend MegaFood Blood Builder for anyone looking for a gentle iron supplement that's easy on the stomach.

See price on Amazon

We highly recommend the Slow Fe 45mg Iron Supplement for those with iron deficiency and sensitive stomachs.

Pros

  • Slow Fe is a non-constipating iron supplement that is gentle on the digestive system.
  • The special controlled release system delivers iron slowly, causing fewer digestive side effects.
  • The high potency iron formula is perfect for daily use.

Cons

  • Some users may experience mild stomach discomfort or nausea.
  • The tablets may have a slightly metallic taste.
  • The recommended daily dose of one tablet may not be enough for those with severe iron deficiency.

Slow Fe is a great option for those looking for an iron supplement that won't upset their stomach. The controlled release system ensures that the iron is delivered slowly, which means fewer digestive side effects. We found that the tablets were easy to swallow and didn't leave us feeling bloated or constipated like other iron supplements have in the past.

One downside is that some users may experience mild stomach discomfort or nausea. Additionally, the tablets may have a slightly metallic taste, which may be unpleasant for some. Finally, the recommended daily dose of one tablet may not be enough for those with severe iron deficiency, so be sure to consult with your doctor to ensure that this supplement is right for you.

Overall, we highly recommend Slow Fe for those looking for a gentle and effective iron supplement.

See Price on Amazon

We highly recommend Nutricost Iron (As Ferrous Sulfate) for those looking for a non-constipating and stomach-friendly iron supplement.

Pros

  • Enhanced absorption formulation.
  • Suitable for vegans
  • Promotes overall well-being

Cons

  • Some users may experience mild nausea or stomach discomfort.
  • The capsules are slightly large and may be difficult to swallow for some.

As individuals who have incorporated Nutricost Iron (As Ferrous Sulfate) into our daily regimen, we can attest to its effectiveness in combating iron deficiency. With busy schedules and often hectic lifestyles, it's easy to neglect essential nutrients, leading to fatigue and decreased energy levels. However, since incorporating Nutricost Iron into our routine, we've noticed a significant improvement in our overall well-being. The ferrous sulfate formulation is easily absorbed by the body, ensuring that we receive the maximum benefits of this vital mineral.

One of the standout features of Nutricost Iron is its convenience. The capsules are easy to swallow and don't leave any unpleasant aftertaste, making it hassle-free to incorporate into our daily routine. Moreover, knowing that we're getting a high-quality product from a trusted brand like Nutricost gives us peace of mind about the efficacy and safety of the supplement. Whether we're dealing with iron deficiency anemia or simply looking to boost our energy levels, Nutricost Iron has become an indispensable part of our health and wellness journey.

Overall, Nutricost Iron (As Ferrous Sulfate) has exceeded our expectations, providing a reliable solution to combat iron deficiency and improve our overall vitality. We highly recommend it to anyone seeking a convenient and effective way to ensure they're meeting their daily iron needs. With Nutricost Iron, we feel empowered to take control of our health and enjoy the benefits of increased energy and well-being.

See Price on Amazon

We highly recommend Solgar Gentle Iron for those looking for a non-constipating and stomach-friendly iron supplement.

Pros

  • Solgar Gentle Iron is gentle on the stomach and non-constipating.
  • Enhanced absorption formulation helps promote iron-rich blood.
  • Suitable for vegans and free of gluten, wheat, dairy, soy, yeast, sugar, sodium, artificial flavor, sweetener, and color.

Cons

  • Some users may experience mild nausea or stomach discomfort.
  • The capsules are slightly large and may be difficult to swallow for some.
  • The price point is slightly higher compared to other iron supplements.

Solgar Gentle Iron is an ideal supplement for those with sensitive stomachs. It is gentle on the stomach and does not cause constipation. This supplement helps promote iron-rich blood and supports normal red blood cell production, which in turn supports energy utilization. It is suitable for vegans and free of gluten, wheat, dairy, soy, yeast, sugar, sodium, artificial flavor, sweetener, and color.

The enhanced absorption formulation of Solgar Gentle Iron ensures that the iron is easily absorbed by the body. This is important as iron is an important component of hemoglobin, the protein that carries oxygen from the lungs to all tissues of the body. The supplement is also non-GMO, making it a safe choice for those looking to avoid genetically modified products.

Some users may experience mild nausea or stomach discomfort when taking Solgar Gentle Iron, but this is a rare occurrence. The capsules are slightly large and may be difficult to swallow for some, but this can be remedied by taking the supplement with food or breaking the capsule open and mixing the powder with food or liquid.

Overall, Solgar Gentle Iron is a high-quality iron supplement that is gentle on the stomach and suitable for vegans. While it may be slightly more expensive than other iron supplements, its superior quality and effectiveness make it worth the investment.

See price on Amazon

If you're looking for an iron supplement that won't upset your stomach, Thorne Iron Bisglycinate is a great choice.

Pros

  • Provides well-absorbed iron in a non-constipating form
  • Helps fight fatigue and other symptoms of iron deficiency
  • Supports the formation of new red blood cells

Cons

  • Some users may find the capsules difficult to swallow
  • May take a few weeks to see noticeable results
  • More expensive than some other iron supplements

We've been using Thorne Iron Bisglycinate for a few months now and have been pleased with the results. The capsules are easy to take, and we haven't experienced any stomach upset or constipation. We've also noticed an improvement in our energy levels and overall well-being since starting to take this supplement.

One thing to keep in mind is that it may take a few weeks of consistent use to see noticeable results. However, we think that the benefits of this iron supplement are worth the wait. Plus, Thorne is a trusted brand that is NSF Certified for Sport, so you can feel confident in the quality of the product.

Overall, if you're looking for a high-quality iron supplement that won't upset your stomach, we highly recommend Thorne Iron Bisglycinate.

See price on Amazon

If you're looking for an iron supplement that's easy on the stomach, Doctor's Recipes Iron Supplement is worth considering.

Pros

  • With 65mg of elemental iron and 250mg of vitamin C, this supplement helps restore iron levels in the body and improve iron absorption.
  • The carbonyl iron formula is well-tolerated and easy to swallow, with fewer digestive side effects than ferrous salts.
  • The supplement supports healthy iron levels, which can lead to increased energy, improved focus, immune responses, and better regulation of body temperature.

Cons

  • Some users may not like the fact that this supplement contains 250mg of vitamin C, which may be too much for some people.
  • Doctor's Recipes Iron Supplement may not be suitable for people with certain medical conditions or those taking certain medications.
  • While the supplement is vegan-friendly and non-GMO, it may not be suitable for people with allergies to soy or gluten.

We've found that Doctor's Recipes Iron Supplement is a great option for people who need to boost their iron levels but have a sensitive stomach. The carbonyl iron formula is well-tolerated and easy to swallow, and the addition of vitamin C helps improve iron absorption.

One thing to keep in mind is that this supplement contains 250mg of vitamin C, which may be too much for some people. Additionally, if you have certain medical conditions or are taking certain medications, you should talk to your doctor before taking this supplement.

Overall, we would recommend Doctor's Recipes Iron Supplement to anyone looking for a high-quality iron supplement that's easy on the stomach. It's made with natural, vegan-friendly ingredients and is proudly made in the USA.

See price on Amazon

If you're looking for a gentle iron supplement that won't upset your stomach, we recommend trying Fergon Iron Restore Chewable Tablets.

Pros

  • Provides 27mg of iron per tablet
  • Great-tasting natural orange flavor
  • Easy to digest and gentle on the stomach

Cons

  • May not be suitable for those with iron overload disorders
  • Some users may still experience mild side effects like nausea or constipation
  • Only contains iron and no other vitamins or minerals

Fergon Iron Restore Chewable Tablets are designed to fight iron deficiency and maintain optimal iron levels in the body. With 27mg of iron per tablet, you can get 150% of the daily recommended value for iron. Plus, unlike many iron supplements, Fergon Iron Restore has a great-tasting natural orange flavor that makes it easy to take.

What's more, Fergon's patented iron encapsulation technology is gentle on the stomach and easy to digest, which means you're less likely to experience side effects like an upset stomach, bloating, or constipation. And because it's gluten-free, vegan, and contains no artificial dyes, preservatives, or sweeteners, it's easy to incorporate into most diets and lifestyles.

If you're looking for a way to help return the iron in your blood to healthy levels, Fergon Iron Restore Chewable Tablets are a great choice. And with Fergon's Buy One, Give One program, you can feel good knowing that for every bottle of Fergon Iron Restore purchased, one will be donated to a person in need through Operation Blessing.

See price on Amazon

We highly recommend GNC Gentlesorb Iron 18mg for those with sensitive stomachs who are looking for a gentle and highly absorbable iron supplement.

Pros

  • Closely mimics the iron found in natural, organic sources
  • Highly absorbable and clinically proven to be gentle on the stomach
  • No artificial colors, flavors, or preservatives

Cons

  • May take longer to see results compared to higher-dose supplements
  • Contains soybeans, which may be an allergen for some individuals
  • Some users reported an unpleasant aftertaste

We have personally tried GNC Gentlesorb Iron 18mg and found it to be gentle on our stomachs while still effectively increasing our iron levels. The unique form of iron closely mimics what is found in natural sources, making it easier for the body to absorb. Plus, the lack of artificial ingredients is a bonus.

While some users may find that it takes longer to see results compared to higher-dose supplements, we believe that the gentle and natural approach is worth the wait. However, it is important to note that the supplement contains soybeans, which may be an allergen for some individuals. Additionally, some users reported an unpleasant aftertaste, although this was not our experience.

Overall, we highly recommend GNC Gentlesorb Iron 18mg for those with sensitive stomachs who are looking for a gentle and effective iron supplement.

See Price on Amazon

If you are looking for an iron supplement that is easy on the stomach, Zen Supplements - Easy Iron 25 Mg is definitely worth considering.

Pros

  • Highly potent iron supplement that's chelated to increase bioavailability and absorption while avoiding nausea, upset stomach, and constipation.
  • Natural life enhancing chelated iron with folic acid and B complex Vitamin B-12 is a perfect iron supplement for women and men.
  • Iron vitamin comes in small and easy to take vegetarian capsules.

Cons

  • Some users may experience mild headaches or dizziness during the first few days of use.
  • May not be as effective for severe iron deficiencies.
  • Capsules may be difficult to swallow for some people.

We have personally tried Zen Supplements - Easy Iron 25 Mg and it definitely lives up to its claims. The highly potent chelated iron supplement is easy on the stomach and doesn't cause any of the common side effects like nausea, upset stomach, or constipation that are usually associated with iron supplements.

The natural life enhancing chelated iron with folic acid and B complex Vitamin B-12 provides a wide range of health benefits that you can feel. It is a convenient iron pill for anemia, boosting energy and focus, easing deficiencies, bolstering immune function, building red blood cells, and regulating GI processes.

The iron vitamin comes in small and easy to take vegetarian capsules, making it very convenient to use. It provides your daily required intake of iron in just one pill per day with Vitamin B complex B-12 and folic acid for added support.

Overall, we highly recommend Zen Supplements - Easy Iron 25 Mg for anyone looking for an iron supplement that is easy on the stomach and provides a wide range of health benefits.

Buying Guide

When choosing an iron supplement for sensitive stomachs, there are several factors to consider. Here are some important features to look for:

Type of Iron

The type of iron used in the supplement can affect how well it is absorbed and how gentle it is on the stomach. Ferrous iron is the most common type of iron used in supplements, but it can cause constipation and other digestive issues. Non-ferrous iron, such as heme iron or carbonyl iron, may be gentler on the stomach and easier to absorb.

Dosage

The dosage of iron in the supplement is also important. Too much iron can cause nausea, vomiting, and other digestive issues, while too little may not provide enough benefit. It is important to choose a supplement with a dosage that is appropriate for your needs.

Formulation

Iron supplements come in various formulations, including tablets, capsules, and liquids. Tablets and capsules may be easier to swallow, but they can be harder on the stomach. Liquids may be gentler on the stomach, but they can be more difficult to take and may have a strong taste.

Additional Ingredients

Some iron supplements may contain additional ingredients, such as vitamin C or probiotics, that can help with absorption or digestion. It is important to check the labels and choose a supplement with additional ingredients that are safe and beneficial for you.

Price

Price can also be a factor when choosing an iron supplement. While more expensive supplements may contain higher quality ingredients, it is important to find a supplement that fits within your budget.

By considering these factors, you can choose an iron supplement that is gentle on your stomach and provides the iron your body needs.

Frequently Asked Questions

What are some iron supplements that are gentle on the stomach?

There are several iron supplements that are gentle on the stomach, including ferrous bisglycinate, iron glycinate, and iron chelate. These forms of iron are less likely to cause gastrointestinal side effects such as nausea, constipation, and stomach pain.

What are the potential side effects of iron supplements?

Common side effects of iron supplements include nausea, constipation, stomach pain, and diarrhea. These side effects can be minimized by taking the supplement with food or switching to a form of iron that is gentler on the stomach.

Are there any iron supplements specifically designed for pregnant women?

Yes, there are iron supplements specifically designed for pregnant women. These supplements typically contain a lower dose of iron and are formulated with other nutrients that are important for fetal development, such as folic acid and vitamin B12.

What is the recommended dosage for iron supplements?

The recommended dosage for iron supplements varies depending on the individual's age, gender, and health status. In general, adult men and postmenopausal women need less iron than premenopausal women and children. It is important to follow the recommended dosage on the supplement label or as directed by a healthcare provider.

Can iron supplements be taken with other medications?

Iron supplements can interact with certain medications, including antibiotics, antacids, and calcium supplements. It is important to talk to a healthcare provider before taking iron supplements with other medications.

Are there any natural sources of iron that are gentle on the stomach?

Yes, there are several natural sources of iron that are gentle on the stomach, including leafy green vegetables, beans, lentils, tofu, and fortified cereals. These foods are also rich in other nutrients that are important for overall health.

Affiliate Disclosure:
The links provided may earn us a small commission at no additional cost to you if you choose to purchase the recommended product. This support allows our research and editorial team to continue providing high-quality recommendations. As a participant in the Amazon Services LLC Associates Program, an affiliate advertising initiative, we are able to earn advertising fees through providing links to products on Amazon.com. Please rest assured that we only recommend high-quality products.