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Iron (Ferrous Fumarate) 18 mg

4.8
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(1843 ratings)
Iron 18 mg
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Score82
Ferrous fumarate provides an effective entry-level amount but may be less comfortable than chelated iron. No vitamin C, folate, or vitamin B12 is included.
How scoring works
Capsule
Quantity:60 Capsule(s) • (60 servings)
Goals:
Energy
Hair Health
Productivity Boost

Score 82

Ferrous fumarate provides an effective entry-level amount but may be less comfortable than chelated iron. No vitamin C, folate, or vitamin B12 is included.
How scoring works
$8.23($0.13 per serving)
iHerb
$ 11.09
Amazon
$ 0.00
Walmart
$ 8.23
iHerb
$ 11.09
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Analysis

ferrous fumarate supplies 18 mg of iron in one capsule. Ferrous fumarate provides an effective entry-level amount but may be less comfortable than chelated iron.

The serving may support energy and hair when iron is low without reaching the aggressive levels of many high-potency products. One capsule and a low serving cost keep the simple formula accessible.

No vitamin C, folate, or vitamin B12 is included. Iron status and the reason for supplementation should guide duration and dose.

Who is it for
  • Adults needing a moderate iron amount
  • People who prefer capsules
  • Users who tolerate ferrous fumarate
Best for
  • Moderate-dose iron support
  • Simple daily dosing
  • Budget supplementation

Pros

  • Moderate 18 mg iron amount
  • One-capsule serving
  • Simple focused formula
  • Low serving cost

Cons

  • Fumarate may be less gentle than bisglycinate
  • No vitamin C
  • No blood-cell-supporting B vitamins

Warnings

  • Ferrous fumarate can cause constipation, nausea, or abdominal discomfort.
  • Use iron for a confirmed need; unnecessary intake can accumulate, particularly in people with hemochromatosis or other iron-overload conditions.
  • Iron can reduce absorption of levothyroxine and some tetracycline or quinolone antibiotics, so separate doses as directed by a pharmacist.
  • Keep iron supplements away from children because accidental ingestion can cause serious iron poisoning.

Nutrient quality

83 Highest impact

A useful lower-end amount provides focused iron support. The standard form and absence of absorption cofactors limit quality compared with chelates.

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Ingredient transparency

84 Highest impact

The iron form and amount are specific, with no hidden blend. Intake directions and non-active ingredients were not included in the supplied details.

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Customer satisfaction

72 High impact

The available satisfaction metric is favorable and the sample provides useful confidence. Specific experience details are absent, so repeated complaints and purpose fit remain uncertain.

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Value for money

87 Highest impact

Useful active quality and a practical serving cost support good value. The formula compares well without obvious price inflation.

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Report analysis

Goals

Energy
Energy
Impact
Highest effect
A+ Goal FitB+ Strength of SupportD+ CoverageA Formula Quality
Iron · 18 mg

Iron directly supports oxygen transport, so correcting deficiency can meaningfully improve fatigue and physical stamina. Ferrous fumarate supplies 18 mg, which reaches the lower end of an effective supplemental range.

The single-mineral capsule is focused but does not cover mitochondrial cofactors, alertness, or stress resilience. Iron can cause constipation or stomach upset and should be used for a confirmed need because unnecessary iron can accumulate.

Study evidence
Iron Supportive 74 studies
Hair Health
Hair Health
Impact
High effect
B+ Goal FitA- Strength of SupportD+ CoverageA+ Formula Quality
Iron · 18 mg

Iron can support hair density when low iron stores contribute to diffuse shedding. It is not expected to improve hair when iron status is already sufficient.

The disclosed ferrous fumarate amount is meaningful and uses a standard absorbable form. Unnecessary iron can cause constipation or nausea and may accumulate, so the product is most appropriate when low iron status is established.

Study evidence
Iron Disputed 25 studies
Productivity Boost
Productivity Boost
Impact
High effect
C+ Goal FitB+ Strength of SupportD CoverageA Formula Quality
Iron · 18 mg

Iron can improve energy and concentration when low iron status is limiting oxygen delivery. Human evidence supports correcting deficiency-related fatigue, but iron does not boost productivity when stores are already sufficient.

The 18 mg ferrous fumarate amount is clearly disclosed and falls within an effective supplemental range. The capsule lacks vitamin C or other absorption cofactors, and ferrous fumarate may cause digestive discomfort.

Study evidence
Iron Supportive 69 studies

Ingredients

IngredientAmount per serving
Iron (Ferrous Fumarate)
 18 mg
Adults 18–50
Report overview
Iron (Ferrous Fumarate) · 18 mg OverallScore81
D+ Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA+ Value

The 18 mg iron dose meets the lower end of the effective range in one capsule. Ferrous fumarate can work well but may be less comfortable for sensitive stomachs than chelated iron. Low serving cost supports good everyday value, while the lack of absorption cofactors is the main limitation.

View ingredientView products
Loading alternative details
85 Performance

Iron Complex

Advanced Nutrition by Zahler
Ferrochel iron is paired with vitamin C, methylcobalamin, folic acid, and histidine, giving broader disclosed support for energy and hair goals. Its iron amount is higher than the original’s 18 mg. The added nutrients make it less minimal than a single-ingredient iron product.
87 Performance

Vegan True Iron Support

Source Naturals
Ferrochel bisglycinate iron is combined with vitamin C, folic acid, and vitamin B12, with strong iron and energy alignment. Its iron amount is higher than the original’s 18 mg. Cyanocobalamin and folic acid are clearly listed, although other forms may be preferred by some users.
86 Performance

Chelated Iron 18 mg

Bluebonnet
The concise formula uses a clearly identified ferrous bisglycinate chelate and avoids unrelated active ingredients. Its iron amount stays close to the original’s 18 mg. The simpler amount may suit users who do not need a higher-dose or multi-ingredient formula.
77 Budget

Iron 65 mg

Nature Made
The lower serving cost provides a clearly identified ferrous sulfate form. Its iron amount is higher than the original’s 18 mg. The single-active formula keeps the formula similarly focused on iron.
85 Budget

Iron 25 mg

Source Naturals
The lower serving cost provides iron as an explicitly named amino acid chelate. Its iron amount is higher than the original’s 18 mg. The single-active formula keeps the formula similarly focused on iron.
85 Budget

Iron Ferrochel Ferrous Bisglycinate Chelate 36 mg

California Gold Nutrition
The lower serving cost provides iron as a clearly identified Ferrochel ferrous bisglycinate chelate. Its iron amount is higher than the original’s 18 mg. The single-active formula keeps the formula similarly focused on iron.
86 Value

High Absorption Iron with Ferrochel 27 mg

Doctor's Best
The lower serving cost provides a focused Ferrochel iron formula with favorable iron and hair-goal alignment. Its iron amount is higher than the original’s 18 mg. The single-active formula keeps the formula similarly focused on iron.
80 Value

Iron 27 mg

21st Century
The lower serving cost provides ferrous gluconate iron with a disclosed calcium amount. Its iron amount is higher than the original’s 18 mg. The added calcium makes it less minimal than a single-ingredient iron option.
78 Value

Prenatal Multivitamin/Multimineral with Folate

Spring Valley
The lower serving cost provides iron alongside folate, vitamin C, vitamin D3, zinc, and other prenatal nutrients. Its iron amount is higher than the original’s 18 mg. The iron form is not supplied, and the prenatal focus may be unnecessary for someone seeking iron alone.
Report alternatives

Sources

Published studies used for the product analysis and the top-ranked studies for each ingredient and goal.

  1. Effect of iron therapy on fatigue symptoms in non-anaemic iron deficient women of reproductive age- A Randomized Controlled Trial.
    Sultana N; Bajwa FA; Sikandar MZ; Haider MM; Majeed T · JPMA. The Journal of the Pakistan Medical Association · 2026
    Randomized trial164 participantsEnergy forIron
  2. The Effect of Parenteral or Oral Iron Supplementation on Fatigue, Sleep, Quality of Life and Restless Legs Syndrome in Iron-Deficient Blood Donors: A Secondary Analysis of the IronWoMan RCT.
    Macher S; Herster C; Holter M; Moritz M; Matzhold EM; Stojakovic T; Pieber TR; Schlenke P; Drexler C; Amrein K · Nutrients · 2021
    Randomized trial176 participantsEnergy forIron
  3. Intravenous iron for the treatment of fatigue in nonanemic, premenopausal women with low serum ferritin concentration.
    Krayenbuehl PA; Battegay E; Breymann C; Furrer J; Schulthess G · Blood · 2011
    Randomized trial90 participantsEnergy forIron
  4. Clinical evaluation of iron treatment efficiency among non-anemic but iron-deficient female blood donors: a randomized controlled trial.
    Waldvogel S; Pedrazzini B; Vaucher P; Bize R; Cornuz J; Tissot JD; Favrat B · BMC medicine · 2012
    Randomized trial154 participantsEnergy forIron
  5. Maternal Fatigue after Postpartum Anemia Treatment with Intravenous Ferric Carboxymaltose vs. Intravenous Ferric Derisomaltose vs. Oral Ferrous Sulphate: A Randomized Controlled Trial.
    Bombač Tavčar L; Hrobat H; Gornik L; Preložnik Zupan I; Vidmar Šimic M; Pečlin P; Kavšek G; Lučovnik M · Journal of clinical medicine · 2024
    Randomized trial300 participantsEnergy forIron
  6. Iron deficiency, general health and fatigue: results from the Australian Longitudinal Study on Women's Health.
    Patterson AJ; Brown WJ; Powers JR; Roberts DC · Quality of life research : an international journal of quality of life aspects of treatment, care and rehabilitation · 2001
    Cohort studyEnergy forIron
  7. Iron plays a certain role in patterned hair loss.
    Park SY; Na SY; Kim JH; Cho S; Lee JH · Journal of Korean medical science · 2014
    Case-control study420 participantsHair Health forIron
  8. Iron status in diffuse telogen hair loss among women.
    Moeinvaziri M; Mansoori P; Holakooee K; Safaee Naraghi Z; Abbasi A · Acta dermatovenerologica Croatica : ADC · 2010
    Case-control study60 participantsHair Health forIron
  9. Low iron stores: a risk factor for excessive hair loss in non-menopausal women.
    Deloche C; Bastien P; Chadoutaud S; Galan P; Bertrais S; Hercberg S; de Lacharrière O · European journal of dermatology : EJD · 2008
    Cross-sectional study5,110 participantsHair Health forIron
  10. A Hospital-based Study to Determine Causes of Diffuse Hair Loss in Women.
    Malkud S · Journal of clinical and diagnostic research : JCDR · 2015
    Observational study180 participantsHair Health forIron
  11. Scientific Opinion on the substantiation of a health claim related to iron and maintenance of normal hair growth pursuant to Article 13(5) of Regulation (EC) No 1924/2006.
    EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA) · EFSA journal. European Food Safety Authority · 2026
    Guideline / consensusHair Health forIron
  12. Hair Loss After Metabolic and Bariatric Surgery: a Systematic Review and Meta-analysis.
    Zhang W; Fan M; Wang C; Mahawar K; Parmar C; Chen W; Yang W; Global Bariatric Research Collaborative · Obesity surgery · 2021
    Meta-analysis2,538 participants18 studies pooledHair Health forIron
  13. Large-dose intravenous ferric carboxymaltose injection for iron deficiency anemia in heavy uterine bleeding: a randomized, controlled trial.
    Van Wyck DB; Mangione A; Morrison J; Hadley PE; Jehle JA; Goodnough LT · Transfusion · 2010
    Randomized trial477 participantsEnergy forIron
  14. Ferric carboxymaltose vs. oral iron in the treatment of pregnant women with iron deficiency anemia: an international, open-label, randomized controlled trial (FER-ASAP).
    Breymann C; Milman N; Mezzacasa A; Bernard R; Dudenhausen J; FER-ASAP investigators · Journal of perinatal medicine · 2018
    Randomized trial252 participantsEnergy forIron
  15. Intravenous iron isomaltoside treatment of women suffering from severe fatigue after postpartum hemorrhage.
    Holm C; Thomsen LL; Langhoff-Roos J · The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians · 2019
    Randomized trial85 participantsEnergy forIron
  16. The Association Between Alopecia Areata and Iron Deficiency Anemia: A Large-Scale Population-Based Case-Control Study.
    Davidovici B; Drutin Y; Ben-Tov A; Mimouni D; Wohl Y · Journal of personalized medicine · 2026
    Case-control study100,203 participantsHair Health forIron
  17. Iron Deficiency and Nonscarring Alopecia in Women: Systematic Review and Meta-Analysis.
    Treister-Goltzman Y; Yarza S; Peleg R · Skin appendage disorders · 2022
    Meta-analysis10,029 participants36 studies pooledHair Health forIron
  18. Comparative Analysis of Postoperative Hair Loss and Micronutrient Deficiencies After One-Anastomosis Gastric Bypass Versus Sleeve Gastrectomy.
    Chinisaz F; Maleki T; Najjari K; Miratashi Yazdi SA · Obesity surgery · 2026
    Cohort study261 participantsHair Health forIron
  19. Assessment of Serum Ferritin Levels in Female Patients With Telogen Effluvium.
    Thamotharan N; Harikumar MV; Sundaram M; Swaminathan A; Rangarajan S · Cureus · 2026
    Cross-sectional study100 participantsHair Health forIron
  20. Diagnosis and treatment of female alopecia: Focusing on the iron deficiency-related alopecia.
    Lin CS; Chan LY; Wang JH; Chang CH · Tzu chi medical journal · 2023
    Cohort study155 participantsHair Health forIron
  21. Effects of daily iron supplementation in primary-school-aged children: systematic review and meta-analysis of randomized controlled trials.
    Low M; Farrell A; Biggs BA; Pasricha SR · CMAJ : Canadian Medical Association journal = journal de l'Association medicale canadienne · 2014
    Meta-analysis7,089 participants32 studies pooledProductivity Boost forIron
  22. Consumption of Iron-Biofortified Beans Positively Affects Cognitive Performance in 18- to 27-Year-Old Rwandan Female College Students in an 18-Week Randomized Controlled Efficacy Trial.
    Murray-Kolb LE; Wenger MJ; Scott SP; Rhoten SE; Lung'aho MG; Haas JD · The Journal of nutrition · 2017
    Randomized trial150 participantsProductivity Boost forIron
  23. Functional consequences of iron supplementation in iron-deficient female cotton mill workers in Beijing, China.
    Li R; Chen X; Yan H; Deurenberg P; Garby L; Hautvast JG · The American journal of clinical nutrition · 1994
    Randomized trial80 participantsProductivity Boost forIron
  24. The Effect of Iron-Fortified Lentils on Blood and Cognitive Status among Adolescent Girls in Bangladesh.
    Barnett AL; Wenger MJ; Yunus FM; Jalal C; DellaValle DM · Nutrients · 2023
    Randomized trial359 participantsProductivity Boost forIron
  25. Daily iron supplementation for improving anaemia, iron status and health in menstruating women.
    Low MS; Speedy J; Styles CE; De-Regil LM; Pasricha SR · The Cochrane database of systematic reviews · 2016
    Meta-analysis8,506 participants67 studies pooledProductivity Boost forIron