The Best Iron Supplements (2021 Reviews)

Jordan Robinson
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Iron is a trace mineral found in the blood that is responsible for transporting oxygen throughout the body. Unfortunately, many Americans don’t get enough iron and too, it’s the most common nutritional deficiency in the world.

We rely on iron for a number of physiological functions, including:

  • Producing hemoglobin and myoglobin
  • Inhibiting free radical damage
  • Generating energy
  • Promoting growth and development

A lack of iron is often associated with onset of anemia. However, this isn’t the only association with iron deficiency. Many people are actually iron deficient, but their blood tests come back normal. This is due to a syndrome known as “subclinical” iron deficiency.

If you suspect you’re iron deficient, the American College of Obstetricians and Gynecologists recommends that you “consult a healthcare provider.”

Unfortunately, there’s no concrete way to know if you’re iron deficient or not. If you’re concerned about your iron levels, the best way to know for sure is to get your iron levels tested.

NameCategoryProduct
MegaFood, Blood BuilderBest OverallMegaFood, Blood Builder
21st Century Slow Release Iron TabletsBudget Pick21st Century Slow Release Iron Tablets
Fusion Lifestyle 45 mg Iron Supplement Cherry Flavored Soft Chew Plus Vitamin CUpgrade PickFusion Lifestyle 45 mg Iron Supplement Cherry Flavored Soft Chew Plus Vitamin C

1. MegaFood, Blood Builder

Our rating: 9 / 10

MegaFood, Blood Builder

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Pros:

  • 100% Organic
  • Soy Free
  • Gluten Free
  • Added Vitamin C

Cons:

  • Expensive
  • Potential for upset stomach

What do I think?

I like MegaFood Blood Builder Iron supplement. I'm not sure I would get it again though because I see very little benefit in it for me, I get plenty of iron in my diet already.

Iron is actually quite crucial to the body. It aids the production of red blood cells, which is what carries O2 throughout the body. Iron is found in both meat and plant-based foods, but surprisingly enough, meat contains a higher percentage of absorbable iron. Non-heme iron, like that found in plants, requires more energy and enzymes to be absorbed by the body.

2. MegaFood, Blood Builder Minis

Our rating: 9 / 10

MegaFood, Blood Builder Minis

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This review is for a supplement that works incredibly well and tastes pretty good too. The MegaFood Blood Builder is an iron supplement that combines vitamins and minerals into one supplement.

If you’re like me, you’re probably wondering why I’m covering supplements that can’t be found on GNC…well, keep reading!

MegaFood states that their supplements contain herbal ingredients…why is that noteworthy? Well, their state that they use herbs in their supplements instead of synthetically made ingredients.

3. 21st Century Slow Release Iron Tablets

Our rating: 9 / 10

21st Century Slow Release Iron Tablets

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Pros:

  • Fast, steady release
  • Works fast for an iron supplement
  • Gets to work fast

This iron supplement from 21st Century is great if you’re looking for a supplement that gets active right away, while still giving you a slower release coating over time.

The 21st Century tablet came out, it revolutionized the iron supplement industry and made slow-release tablets essentially obsolete. It’s so effective that it swims right through your stomach and enters your bloodstream with ease.

This iron drops easily and quickly into your system and is good for both men and women. It’s also important to note that 21st Century slow-release tablets also taste good.

4. Feosol Complete

Our rating: 9 / 10

Feosol Complete

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Pros:

  • Two unique delivery systems
  • Suitable for sufferers of sensitive stomach
  • Contains no yeast, artificial flavors, colors or preservatives
  • Meets all FDA requirements
  • Legally permissible to ship to all 50 states
  • Free of stimulants, gluten, lactose, wheat, soy, tree nuts and peanuts
  • Patented Bifera iron
  • Vegetarian

Cons:

  • The dosage instructions are somewhat complex
  • Tastes bad

A one-a-day iron supplement tablet can be beneficial to your health. In fact, according to the Cleveland Clinic, iron-deficiency anemia is the most common nutritional disorder in the United States. It’s also the most common type of nutritional deficiency around the world.

Feosol Complete is a brand of iron supplement that is endorsed by the University of Maryland Medical Center. It comes in the form of green caplets that contain an iron supplement complexed with glycerol to avoid causing an upset stomach. However, be aware of potential side effects associated with iron supplements because the iron can cause constipation and cause stomach upset.

5. Renzo's Iron Strong

Our rating: 9 / 10

Renzo's Iron Strong

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Pros:

  • Enhanced with brain-nourishing omega-3s
  • No sugar & soy, no wheat, no gluten, no milk
  • Brand to trust

Cons:

  • More expensive than the competition
  • Availability

4-Pack.

This Renzo's Iron Strong is an iron supplement for kids with no soy, no gluten and no sugar; it is available in a 4-count package of 90 melty tablets in orange fruit punch flavor.

You can easily dissolve one tablet in water and can go ahead with your routine. The strawberry, raspberry and grape flavors also taste really good.

6. Fusion Lifestyle 45 mg Iron Supplement Cherry Flavored Soft Chew Plus Vitamin C

Our rating: 9 / 10

Fusion Lifestyle 45 mg Iron Supplement Cherry Flavored Soft Chew Plus Vitamin C

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Pros:

  • Very affordable
  • Contains iron and Vitamin C

Cons:

  • No calcium
  • Not in cherry flavor

Taking iron in tablet form can be quite an undertaking for some people, but chewable supplements are much easier to swallow than pills.

The Fusion Lifestyle Iron Plus Vitamin C Plus Cherry Cherry Soft Cherry flavored Chew contains the natural source of iron, vitamin C, and Co-Enzyme Q10, a powerful super-nutrient.

It comes in a convenient 90-count bottle and a one-month supply. One bottle is also cheaper than other competing brands, like Flintstones or Centrum.

7. Solgar Gentle Iron

Our rating: 9 / 10

Solgar Gentle Iron

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Pros:

  • Well-reviewed
  • Relatively inexpensive
  • Available in various quantities
  • Serving size is 3 capsules
  • Not lactose-based
  • Two-capsule serving size is tolerated well by many people

Cons:

  • Not a popular brand
  • Size of capsule is larger than average
  • Some say the product itself is not vegan

Although some people say that this product may not be vegan, there are no vegan capsules on the market. The fact that Solgar Gentle Iron is vegan rated is a major bonus in our book.

By going with Solgar, you’ll be getting a good, well-reviewed brand with an ideal iron supplement without breaking the bank.

This supplement is recommended for those who are lactose-intolerant and/or vegan. The capsules are non-constipating and non-lactose-based. It’s a valerian-free product.

8. Iron Gummies

Our rating: 9 / 10

Iron Gummies

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Pros:

  • Medical grade iron
  • 1800mg iron
  • Large bottle with 60 gummies

I wanted to find the best iron supplements for my mom and came across the Source Naturals Adult Iron, Gummies with Vitamin C and A, and B Complex, Zinc. These gummies solve the problem of how to treat your body and what to do to get your blood iron levels back to normal.

The Source Naturals Adult Iron, Gummies with Vitamin C and A, and B Complex, Zinc are packed with a total of 1800mg and 60 gummies which means that you get a month’s supply when you order them.

The Source Naturals Adult Iron, Gummies with Vitamin C and A, and B Complex, Zinc are one of the most potent iron supplements in the market. The product comes in a gelatin capsule and contains the key ingredients: vitamin C, vitamin A, b vitamins, and zinc.

9. Vitron-C High Potency Iron Supplement

Our rating: 9 / 10

Vitron-C High Potency Iron Supplement

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Pros:

  • Easy to digest
  • Food-compatible iron capsules
  • No stomach upset or constipation
  • Doctor recommended
  • Cheap alternative to prescription iron without the stomach upset

Cons:

  • Reviewers report that while it may not be as effective as a lab-grade iron supplement, it's as close as you're going to get without a prescription, and it's so much cheaper and without the stomach upset or constipation
  • Capsule cases sometimes bunch together in the bottle

A high quality iron supplement is a key ingredient of any anti-aging program. When iron stores are depleted, we don't just look tired and dull, we feel tired and dull.

Iron is a necessary trace element found in every cell in the body. Iron helps transport oxygen from the lungs or gills to red blood cells where it is released and circulated around the body. Without sufficient iron, you may feel tired, sleepy, and lose your zest for life.

Until recently, the only supplemental iron available in America was in a time-release form that tasted horrible and left folks with a stomach ache and constipation.

10. Garden of Life Vitamin Code Raw Iron Supplement

Our rating: 9 / 10

Garden of Life Vitamin Code Raw Iron Supplement

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28 Grams.

11. Feosol Original Ferrous Sulfate Iron

Our rating: 9 / 10

Feosol Original Ferrous Sulfate Iron

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Foil, 120 Tablets.

12. Nature Made Iron 65 mg Tabs

Our rating: 8 / 10

Nature Made Iron 65 mg Tabs

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Pros:

  • Combines with vitamin C for better absorption
  • Works for both men and women
  • Cheaper alternative to prescription supplements

Cons:

  • Bulk packs of pills can be hard to swallow
  • Those who are lactose intolerant should be careful about taking this supplement
  • People who are prone to gassiness may feel it after taking these

These are not the L.I.M.S in the bottle but the other way around. These are tablets and are coated with a coating that helps to make it more absorbable. Still, they do work and will help in cases of iron deficiency.

There are many cheaper brands of this type of supplement all over the market. This is one of them. As long as they are well coated with the small amount of enteric coating with iron, they will work pretty well and help to help a person to get more iron in their diet.

There are iron pills that are constipating, but these have no such effects. That is probably the reason for not eating much after taking them. They will work with vitamin C as well to increase absorption.

13. Amazon Elements Iron 18mg

Our rating: 8 / 10

Amazon Elements Iron 18mg

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Pros:

  • Vegan
  • Gummy Texture
  • 185 count supply (6 months)
  • No order fulfillment fees

Cons:

  • Some may find the price for the strength too high
  • Some may dislike them having iron favor
  • Some may find the packaging cheap
  • No money back guarantee

We all know iron is important, especially for women of childbearing age. Your body needs iron during this time to ensure you can produce enough blood to support a healthy pregnancy. Other than that, the body needs iron to transport oxygen throughout the body.

It’s no surprise that iron is so important to us. So I really like the fact that I can get a nice iron supplement without a prescription.

Our bodies can only process so much iron every day. So if we go over that, our bodies can’t process it and just starts to dump it.

14. Zahlers Iron Complex

Our rating: 8 / 10

Zahlers Iron Complex

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Pros:

  • Kosher certified
  • Uses Ferrochel for better bioavailability
  • Cost effective
  • Plus, it has Vitamins C
  • Available in different sizes
  • Designed to prevent constipation
  • Supports healthy oxygen transport system
  • Doesn’t cause nausea

Iron is a mineral that is commonly used by the body, particularly in making hemoglobin. Hemoglobin is a protein and oxygen carrying molecule that is found in red blood cells.

Normally, red blood cells live for about four months before they are replaced. They are eventually broken down and recycled by the body.

Iron deficiency is a common problem, and there are many different ways that it can affect the way that you feel. It can affect your energy levels, the way that you look, and even the levels of exercising that you can stick to.

15. EZ Melts Iron as Elemental Iron

Our rating: 8 / 10

EZ Melts Iron as Elemental Iron

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16. NaturesPlus Hema-Plex Softgels

Our rating: 8 / 10

NaturesPlus Hema-Plex Softgels

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Pros:

  • Portable
  • Affordable
  • Lifetime guarantee
  • Easy on the stomach

After researching online, I found that physically active individuals need a superior iron supplement that is gentle on the stomach and easy to carry around. The Hema-Plex softgels are made from a high-quality, advanced formula that’s powerful enough to satisfy the body’s iron needs. They’re also formulated from an all-natural source of iron so you can be assured that you’re getting the best.

The softgel capsules are designed to glide through the stomach without hesitation. They’re also convenient because they don’t need to be digested with fats and oils, which makes it easy to take on an empty stomach.

The softgels have a natural sediment which is a naturally occurring protein, which means the capsules are 100% hypoallergenic. This is important because a lot of iron supplements on the market are a byproduct of the manufacturing process which contains chemical byproducts.

17. Thorne Research

Our rating: 8 / 10

Thorne Research

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Thorne Research Iron Bisglycinate features the unique bisglycpinate chelate of iron. Bisglycinate iron features an amino acid chelating system that has the ability to bind and facilitate the safe and effective absorption of iron.

Thorne Research Iron Bisglycinate is designed to minimize the gastrointestinal side effects common with other iron supplements.

Bisglycinate iron is different than other forms of iron in that it can be the same size as zinc and vitamin C in the body and is much smaller than iron. These smaller molecules allow for a greater surface area and therefore increased absorption.

18. Pure Micronutrients Iron Plus Supplement

Our rating: 8 / 10

Pure Micronutrients Iron Plus Supplement

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Pros:

  • Pure and natural ingredients
  • Easy to chew and swallow
  • Rich in iron minerals

If you are looking for a good quality iron supplement, the Pure Micronutrients Iron Plus Supplement by Pure Encapsulations could be just what you are looking for. It offers 30% of your daily iron needs per tab easily and naturally, and it tastes good as well.

It has three forms of iron, which is of great benefit to anyone with iron deficiency. One of the main ingredients added to this supplement is bisglycinate iron. This prevents any side effects that iron pills can have on the body, such as constipation and diarrhea.

It has vitamin C, vitamin B6 and vitamin B12, which are very good for preventing insufficient iron levels. They help the body absorb the iron well, especially on an empty stomach.

19. Rainbow Light

Our rating: 8 / 10

Rainbow Light

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Pros:

  • Quick, easy-to-take pills
  • Relatively inexpensive
  • Smaller pill size
  • Vegan, gluten-free, non-constipating
  • Ferractiv Iron is gentle on the stomach

Cons:

  • Requires frequent multiple pill intakes
  • Doesn’t have as good of iron reinforcement as other iron supplements

The Rainbow Light Complete Iron Mini-tabs is an iron supplement that can be taken as a daily use to help you avoid iron deficiencies.

Rainbow Light is pretty transparent with its ingredients. The first three ingredients are: Ferractiv Iron, Ginger and Vitamin C. Ferractiv Iron is a gentle iron supplement that is designed to be small, breakable and convenient to swallow without the aftertaste of other iron supplements.

The capsules are size N0P, which is what most other iron supplements are size. Compared to other iron supplements, these have 10% less iron since they are smaller capsules. This can help if you are sensitive to iron supplements.

20. Chapter One Iron Gummies

Our rating: 8 / 10

Chapter One Iron Gummies

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Pros:

  • 25 percent of iron absorbed
  • 250 milligrams in each bottle
  • Expanded formula contains vitamin C
  • Four delicious gummy flavors
  • The gummis contain three of the B vitamins
  • Comes in a fruit punch flavor
  • Liqui-Gels created to dissolve quickly
  • A lot of nutrients in one serving
  • Affordable
  • Bottle is small and fits in most pockets

This is certainly the best tasting option on the market, so if you're thinking about giving your kids iron gummies, these are pretty much the only ones we'd recommend. They taste great and have a 25 percent absorption rate. They are less expensive than prescription iron supplements, and since the recommended dosage doesn't negate the taste factor, kids are more apt to get their recommended intake in one serving. One word of warning, though — they have a small, tiny size, so if you have small children, be aware that they can fit down little throats a lot easier than larger pills.

21. Liquid Mineral Supplement

Our rating: 8 / 10

Liquid Mineral Supplement

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Pros:

  • The natural flavor makes it good for those who do not like the taste of other iron supplements.
  • The 16 ounce container gives you value for the price.
  • Container is easy to use and doesn’t require a device to help you open it.

Cons:

  • Some have found it doesn’t taste great.
  • Others have complained of stomach aches after taking it.
  • Some smell a little after they have been exposed to oxygen.

The best way to give yourself your daily dose of iron is to purchase liquid or natural berry iron. A great way to be sure you are taking the correct amount is to fill the measuring cap and then shake it over your mouth.

Some people have found the liquid iron supplements to taste better, but that may not be the case for everyone. If you have trouble with liquids, you could try a different one that is designed to taste better but not put you at risk of stomach cramps.

22. NovaFerrum Pediatric Drops Liquid Iron Supplement

Our rating: 8 / 10

NovaFerrum Pediatric Drops Liquid Iron Supplement

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Pros:

  • Contains 30 mg of iron per serving
  • Juice supplement
  • Builds blood
  • Sugar and starch free
  • Not tested on animals
  • Does not contain soy

Cons:

  • Complaints of bitter aftertaste
  • Not approved by the FDA for use during first year

Now you can provide your child with the nutrients they need to maintain and develop a healthy body. NovaFerrum Pediatric Drops Iron for Children and Toddlers Juice Supplement contains iron which is an essential component of red blood cells that help build up your baby's energy.

NovaFerrum is a natural iron supplement with Vitamin C to keep children's blood strong and healthy. NovaFerrum contains 30 mg per serving of iron which is a significant amount to help increase energy and healthy red blood cells.

Iron is an essential mineral and plays a vital role in maintaining energy levels in children and also helps build a stronger immune system. NovaFerrum is the best juice supplement because it is free from sugar, gluten and soy. NovaFerrum is 98% to 100% natural and 100% juice.

23. Slow Fe

Our rating: 7 / 10

Slow Fe

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Pros:

  • Convenient size
  • No-drip, easy-to-control capsule
  • Great iron content
  • Easy to swallow
  • Preservative-free
  • Delivers iron throughout the day

Cons:

  • May not provide enough calcium
  • Too much iron can be harmful

Slow Fe by Kirkman is a comprehensive Iron supplement designed to deliver iron to the body in a slow-release formula. This is one of many iron supplements listed on Canadian Pharmacy.

In this list, we’ll review the benefits of Slow Fe, how it can benefit you and your family, and how we ranked it amongst the other iron supplements.

Delivering iron into the body in a slow and steady manner is the key to preventing constipation. Iron supplements that deliver iron into the body too quickly can cause constipation and other irritations in the body.

24. Floradix Liquid Iron Supplement + Herbs 17 Oz Large

Our rating: 7 / 10

Floradix Liquid Iron Supplement + Herbs 17 Oz Large

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Pros:

  • High quality
  • Vegetarian and Vegan friendly
  • Taking in iron with natural vitamin C
  • Does not cause constipation or uncomfortable bloating
  • The company supports buy 1 give 1 program

Failing to eat iron rich foods like leafy greens can make it hard for your iron levels to remain balanced, and you could end up developing iron deficiency anemia. Here’s why you should consider supplementing your iron intake:

Inadequate iron in your diet can stop the production of red blood cells, causing your body to compensate by stealing it from your existing supply. This results in an inability to carry oxygen efficiently through your bloodstream and decreased endurance. If you’re an athlete or an active person of any kind, you definitely need it.

Iron deficiency anemia affects more than 1 billion people, and it causes the body to lose its ability to perform many of its vital functions.

25. NaturesPlus Chewable Iron

Our rating: 6 / 10

NaturesPlus Chewable Iron

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This is a sugar free tablet. If sugar is not an issue for you, both the pills and the chewable ones would be better.

Similar to this supplement, is also high in contents of Vitamin C and other powerful vegetables, herbs and seeds.

This supplement's iron content is balanced with a higher amount of vitamin C and other vitamins like zinc, which work together to enhance your absorption of iron.

Frequently Asked Questions (FAQ)

What is the most effective iron supplement?

Iron is one of the most significant mineral deficiencies worldwide. Millions of people suffer from iron deficiency anemia across the globe. However, there are lots of different ways to supplement your body with iron.

Iron chelates are very bioavailable, but they can cause stomach rumblings and sometimes stomach cramps. Also, taking iron supplements together with food in particular can help with the absorption; there are lots of common foods that block your body's ability to absorb iron.

Iron-rich foods are also good, but the problem is that the absorption rate isn’t as high as the levels of iron found in supplements. Prolonged deficiency can lead to more severe health problems such as poor motor ways, poor memory and vitamin-D deficiency. Zinc is an essential ingredient in improving the body's ability to absorb iron.

What is the most absorbable form of iron?

An absorption problem occurs when your body is not able to absorb enough iron to function and maintain good health. It could be a result of your diet, as iron absorption relies on the presence of vitamins like Vitamin C. Other factors that affect absorption are the type of iron consumed, its oxidation (facilitated or not by stomach acids), your age, and the kind of protein you have in your meals

Therefore, to maximize your iron absorption, try consuming foods rich in Vitamin C like citrus and tomatoes with your iron rich meal. Also, eggs (and other foods containing animal proteins) minimise the iron absorption, which is why milk is not recommended for the younger ones.

What is the best iron supplement for hair loss?

When it comes to supplements, iron is always one of the most popular options. But which is the best iron supplement for hair loss and overall hair health? And, we have to answer the second question first before the first one.

Well, the best iron supplement for hair loss is actually good old fashioned hair loss vitamins. They will do an amazing job at a fraction of the cost of some of the specialized products available. The human body needs a lot of iron to stay in tip-top shape, but a lack of iron can cause a whole host of issues. ANemia is one such issue and what it does is reduces the amount of oxygen in your body. Not getting enough oxygen will lead to weakened hair and breaking off.

This is why it's a good idea to keep your iron levels up. And with a good natural hair loss vitamins containing iron in them, you'll have no problems whatsoever.

Now, let's get back to the first question.

Which form of iron is easiest on the stomach?

It can be difficult for those with stomach sensitivities to take this mineral in tablet form. Fortunately, there are plenty of iron supplements that are in liquid form with sweeteners to allow those with sensitive stomachs to avoid the sensation of taking a pill. That being said, the absorption rate is slower than when taking iron in pill form.

Conclusion

In this article, we've examined and identified the 3 best iron supplements which should help you increase the amount of iron in your system. Iron is important for keeping your body functioning properly and if you don't have enough levels of iron. You can start to feel tired. It's important to note that while iron is a mineral that the body needs. There can be times when an individual needs to take a pharmaceutical grade of iron.

Our Recommendation

NameCategoryProduct
MegaFood, Blood BuilderBest OverallMegaFood, Blood Builder
21st Century Slow Release Iron TabletsBudget Pick21st Century Slow Release Iron Tablets
Fusion Lifestyle 45 mg Iron Supplement Cherry Flavored Soft Chew Plus Vitamin CUpgrade PickFusion Lifestyle 45 mg Iron Supplement Cherry Flavored Soft Chew Plus Vitamin C