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Liquid Iron

4.6
★ ★ ★ ★ ★
(2995 ratings)
Iron 18 mg
Product Image
Score81
A convenient 18 mg liquid iron option, offset by added carbohydrates, a short supply, and weaker value.
How scoring works
Liquid
Quantity:8 Liquid(s) • (24 servings)
Goals:
Energy
Hair Health
Fitness
Immunity
Productivity Boost

Score 81

A convenient 18 mg liquid iron option, offset by added carbohydrates, a short supply, and weaker value.
How scoring works
$12.70($0.52 per serving)
Vitacost
$ 13.46
iHerb
$ 13.46
Pure Formulas
$ 13.08
Daily Vita
$ 12.70
Amazon
$ 13.46
Walmart
$ 16.93
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Analysis

Ferric glycinate supplies 18 mg of iron in a liquid format. The dose is moderate and may suit measured supplementation for someone who finds tablets difficult.

The serving also contains 5 g of carbohydrate, which does not add to iron effectiveness. Ferric glycinate is clearly named, but the supplied data do not provide other absorption-supporting nutrients.

Only 24 servings are included and the serving cost is high relative to many chelated capsules. Format convenience is the main reason to choose it over simpler solid-dose products.

Who is it for
  • Adults who cannot swallow iron tablets
  • People needing a moderate liquid iron dose
Best for
  • Liquid iron supplementation
  • Flexible use for pill-averse users

Pros

  • 18 mg clearly disclosed iron
  • Liquid format
  • Ferric glycinate form
  • Moderate rather than aggressive dose

Cons

  • Only 24 servings
  • Contains 5 g carbohydrate
  • Weak value versus capsules
  • No vitamin C or cofactors

Warnings

  • Measure the liquid carefully and use it only for a confirmed iron need.
  • Iron may interfere with levothyroxine and tetracycline or quinolone antibiotics; separate doses appropriately.

Nutrient quality

93 Highest impact

A chelated iron form and meaningful amount provide useful core quality. Missing cofactors keep the formula simple rather than comprehensive.

Ingredient transparency

86 Highest impact

The active form and amount are clear without a proprietary blend. Missing full measuring guidance and flavor-base ingredients leave practical disclosure incomplete.

Customer satisfaction

71 High impact

The supplied average is strong and supported by substantial response volume. No comment-level evidence is available to assess repeated complaints or alignment with the intended use.

Value for money

70 High impact

A useful chelated dose and flexible liquid format provide practical value. Missing cofactors and higher format cost limit competitiveness.

Report analysis

Goals

Energy
Energy
Impact
Highest effect
A Goal FitA Strength of SupportC- CoverageA- Formula Quality
Iron · 18 mg

Iron directly supports oxygen transport and can improve energy when iron status is low. Ferric glycinate supplies a meaningful amount in a flexible liquid form.

The single-mineral design provides strong depth for iron-related fatigue but no mitochondrial or alertness pathway. People with adequate iron should avoid unnecessary extra intake, while the carbohydrate-containing liquid adds little functional value.

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 may reduce shedding when iron deficiency or low stores are contributing to hair loss. It does not reliably improve hair in people whose iron status is already adequate.

The 18 mg amount uses ferric glycinate and fits focused supplementation. Iron can be harmful in iron-overload conditions, while the liquid allows flexible measurement.

Study evidence
Iron Disputed 25 studies
Fitness
Fitness
Impact
High effect
C Goal FitA- Strength of SupportD CoverageA- Formula Quality

Ferric glycinate may support oxygen transport and energy when iron status is low. The 18 mg amount is fully disclosed, and the liquid chelated form allows flexible measurement.

The benefit is situation-specific because supplemental iron is not a general performance enhancer for people with adequate stores. Vitamin C, folate, and vitamin B12 are absent, leaving the formula narrowly focused on iron alone.

Study evidence
Iron Supportive 81 studies
Immunity
Immunity
Impact
High effect
C- Goal FitA Strength of SupportF CoverageB+ Formula Quality

Iron can support immune cell proliferation when deficiency is present, and ferric glycinate offers a gentle chelated liquid form at a meaningful amount. Its immune value remains situational rather than universal.

People with adequate iron status should not use iron solely for immune support because excess iron can be harmful. Secure storage is essential because accidental ingestion of liquid iron can cause severe poisoning in children.

Study evidence
Iron Supportive 23 studies
Productivity Boost
Productivity Boost
Impact
High effect
C Goal FitB+ Strength of SupportF CoverageA- Formula Quality
Iron · 18 mg

Iron may support stamina and concentration when deficiency is present, but it does not directly boost focus in iron-replete users. Evidence strongly favors deficiency correction rather than routine cognitive enhancement.

The 18 mg serving provides a meaningful iron amount. The liquid design is straightforward, but iron can cause digestive effects and should not be taken without a clear need.

Study evidence
Iron Supportive 69 studies

Ingredients

IngredientAmount per serving
Calories
20 Calorie(s)
Total Carbohydrates
5 Gram(s)
Iron (Iron Taste Free Ferric Glycinate)
 18 mg
Gluten Free Adults 18–50 Vegan Kosher Dairy Free Vegetarian
Report overview
Iron (Iron Taste Free Ferric Glycinate) · 18 mg OverallScore83
B+ Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyD+ Value

Ferric glycinate provides a chelated form at an effective 18 mg dose, and the liquid allows flexible measurement. The standalone formula lacks vitamin C, folate, and vitamin B12 to support absorption and red blood cell nutrition. A serving cost above the median limits value despite the gentle delivery format.

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 leaves out the original’s other listed ingredients.
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 leaves out the original’s other listed ingredients.
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 leaves out the original’s other listed ingredients.
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 leaves out the original’s other listed ingredients.
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. 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
  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. 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
  4. 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
  5. 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
  6. Ferric carboxymaltose in patients with heart failure and iron deficiency.
    Anker SD; Comin Colet J; Filippatos G; Willenheimer R; Dickstein K; Drexler H; Lüscher TF; Bart B; Banasiak W; Niegowska J; Kirwan BA; Mori C; von Eisenhart Rothe B; Pocock SJ; Poole-Wilson PA; Ponikowski P; FAIR-HF Trial Investigators · The New England journal of medicine · 2010
    Randomized trial459 participantsFitness forIron
  7. Marginal iron deficiency without anemia impairs aerobic adaptation among previously untrained women.
    Brownlie T; Utermohlen V; Hinton PS; Giordano C; Haas JD · The American journal of clinical nutrition · 2002
    Randomized trial41 participantsFitness forIron
  8. Ferric Carboxymaltose Versus Ferrous Fumarate in Anemic Children with Inflammatory Bowel Disease: The POPEYE Randomized Controlled Clinical Trial.
    Bevers N; Van de Vijver E; Aliu A; Rezazadeh Ardabili A; Rosias P; Stapelbroek J; Bertrams Maartens IA; van de Feen C; Escher H; Oudshoorn A; Teklenburg S; Vande Velde S; Winkens B; Raijmakers M; Vreugdenhil A; Pierik MJ; van Rheenen PF · The Journal of pediatrics · 2023
    Randomized trial64 participantsFitness forIron
  9. 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 pooledFitness Productivity Boost forIron
  10. Altered metabolic response of iron-depleted nonanemic women during a 15-km time trial.
    Zhu YI; Haas JD · Journal of applied physiology (Bethesda, Md. : 1985) · 1998
    Randomized trial37 participantsFitness forIron
  11. 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
  12. 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
  13. 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
  14. 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
  15. 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
  16. The immune response in iron-deficient children: Impaired cellular defense mechanisms with altered humoral components.
    Macdougall LG; Anderson R; McNab GM; Katz J · The Journal of pediatrics · 1975
    Single-arm trial27 participantsImmunity forIron
  17. The role of iron homeostasis in remodeling immune function and regulating inflammatory disease.
    Mu Q; Chen L; Gao X; Shen S; Sheng W; Min J; Wang F · Science bulletin · 2023
    Narrative reviewImmunity forIron
  18. Hepcidin--a peptide hormone at the interface of innate immunity and iron metabolism.
    Ganz T · Current topics in microbiology and immunology · 2006
    Narrative reviewImmunity forIron
  19. Adaptive immunity and vaccination - iron in the spotlight.
    Preston AE; Drakesmith H; Frost JN · Immunotherapy advances · 2025
    Narrative reviewImmunity forIron
  20. Buried Treasure: Evolutionary Perspectives on Microbial Iron Piracy.
    Barber MF; Elde NC · Trends in genetics : TIG · 2016
    Narrative reviewImmunity 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