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Chelated Iron 27 mg

Carlson
4.8
★ ★ ★ ★ ★
(4458 ratings)
Iron 27 mg
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Score88
A focused 27 mg bisglycinate tablet with excellent value and a practical supply size for monitored use.
How scoring works
Quantity:100 Tablet(s) • (100 servings)
Goals:
Hair Health
Productivity Boost
Energy

Score 88

A focused 27 mg bisglycinate tablet with excellent value and a practical supply size for monitored use.
How scoring works

Also available as

1 option
250 servings Iron 27 mg • 250 Tablet(s) • 250 servings $16.92 ($0.06 per serving)
$8.42($0.08 per serving)
Pure Formulas
$ 8.42
iHerb
$ 8.42
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Analysis

Iron bisglycinate chelate provides 27 mg per tablet in a straightforward formula. The chelated form combines meaningful dose strength with a generally favorable tolerance profile.

No vitamin C, folate, or vitamin B12 is included, which keeps the product focused. Users who need broader blood-cell support would need to obtain those nutrients elsewhere.

The 100-tablet count offers strong value without committing to the much larger bottle. It is a practical option for a monitored course, provided follow-up determines when the dose should change or stop.

Who is it for
  • Adults with confirmed low iron
  • People who prefer a moderate bottle size
Best for
  • Chelated iron supplementation
  • A time-limited monitored course

Pros

  • 27 mg iron bisglycinate
  • Clear single-active label
  • Generally gentle form
  • Excellent serving value

Cons

  • No absorption cofactors are included
  • No broader blood-cell nutrients
  • May still cause digestive effects
  • Requires confirmation of need

Warnings

  • Use iron for a demonstrated need and reassess status because excess can accumulate.
  • Iron can reduce absorption of levothyroxine and tetracycline or quinolone antibiotics; use appropriate dose spacing.

Nutrient quality

95 Highest impact

A favorable chelated form and meaningful dose provide strong core quality. Missing absorption and blood-forming cofactors are the main limitation.

Ingredient transparency

88 Highest impact

The active form and amount are clear without a proprietary blend. Missing full directions and non-active ingredients leave only modest disclosure gaps.

Customer satisfaction

73 High impact

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

Value for money

96 Highest impact

A favorable chelate, useful amount, and simple formula provide strong value. Lack of supporting cofactors is a modest trade-off rather than a major cost problem.

Report analysis

Goals

Hair Health
Hair Health
Impact
Highest effect
A- Goal FitA+ Strength of SupportD CoverageA Formula Quality
Iron · 27 mg

Chelated iron directly addresses low ferritin, a major nutrition-related cause of diffuse hair shedding. Evidence strongly supports correcting iron deficiency, but routine iron does not improve hair when iron status is adequate.

The 27 mg amount is substantial enough for deficiency-oriented support. The single-ingredient design is coherent, but 27 mg of iron can cause digestive effects and should be reserved for a demonstrated or likely need.

Study evidence
Iron Disputed 25 studies
Productivity Boost
Productivity Boost
Impact
Highest effect
B- Goal FitA+ Strength of SupportC- CoverageA Formula Quality
Iron · 27 mg

Chelated iron may support mental stamina and concentration when low iron impairs oxygen transport. People with adequate stores should not expect a direct nootropic effect.

The 27 mg amount uses a well-absorbed bisglycinate form and is fully disclosed. Unneeded iron may cause constipation or contribute to iron excess, which is especially relevant for people with hemochromatosis.

Study evidence
Iron Supportive 69 studies
Energy
Energy
Impact
High effect
B+ Goal FitB+ Strength of SupportD- CoverageA Formula Quality
Iron · 27 mg

Iron bisglycinate is a well-absorbed form that may be gentler than common iron salts. The clearly disclosed amount is appropriate for targeted iron support when increased need or deficiency has been established.

The formula lacks vitamin C, folate, and vitamin B12, so users must obtain those supporting nutrients elsewhere. Iron should not be taken casually when stores are adequate because excess can cause digestive symptoms and harmful accumulation.

Study evidence
Iron Supportive 74 studies

Ingredients

IngredientAmount per serving
Iron (Iron Bisglycinate Chelate)
 27 mg
Gluten Free Adults 18–50
Report overview
Iron (Iron Bisglycinate Chelate) · 27 mg OverallScore89
B- Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA+ Value

Iron bisglycinate chelate provides a premium form at an effective 27 mg dose. The single tablet is convenient, though it lacks vitamin C, folate, or vitamin B12 to support absorption and red blood cell nutrition. A low serving cost makes it attractive for people who obtain those cofactors elsewhere.

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 stays close to the original’s 27 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 stays close to the original’s 27 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 is lower than the original’s 27 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 27 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 stays close to the original’s 27 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 serving cost is essentially equal, while the alternative provides iron as a clearly identified Ferrochel ferrous bisglycinate chelate. Its iron amount is higher than the original’s 27 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 serving cost is essentially equal, while the alternative provides a focused Ferrochel iron formula with favorable iron and hair-goal alignment. Its iron amount stays close to the original’s 27 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 stays close to the original’s 27 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 stays close to the original’s 27 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. 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
  7. 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
  8. 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
  9. 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
  10. 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
  11. 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
  12. 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
  13. 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
  14. 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
  15. 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