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Iron 25 mg

Source Naturals
4.8
★ ★ ★ ★ ★
(2109 ratings)
Iron 25 mg
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Score85

A focused chelated iron tablet delivers outstanding value, but its substantial dose belongs in a monitored iron plan.

How scoring works
Quantity:250 Tablet(s) • (250 servings)
Goals:
Hair Health
Energy
Productivity Boost

Score 85

A focused chelated iron tablet delivers outstanding value, but its substantial dose belongs in a monitored iron plan.

How scoring works
$11.44($0.04 per serving)
Pure Formulas
$ 11.44
Amazon
$ 12.26
iHerb
$ 12.42
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Analysis

One tablet provides 25 mg iron as an amino acid chelate. The amount is well aligned with targeted use, though the exact chelate compound is not stated.

No vitamin C, folate, or B12 accompanies the iron. The clean single-ingredient design is easy to understand but does not support additional pathways behind fatigue or hair concerns.

A 250-serving package makes ongoing use extremely economical when monitoring confirms a need. The large supply also increases the importance of safe storage and avoiding unnecessary long-term intake.

Who is it for
  • Adults with a defined iron need
  • Long-term value seekers
  • Users comfortable with a tablet
Best for
  • Targeted iron routines
  • Deficiency-related energy support
  • Large-package value

Pros

  • Provides 25 mg chelated iron
  • Single-tablet serving
  • Two hundred fifty servings
  • Very strong value

Cons

  • Exact chelate is not identified
  • No vitamin C
  • No folate or B12
  • Large supply may encourage unmonitored long-term use

Warnings

  • The 25 mg dose should match a confirmed need because excess iron may accumulate
  • Iron can cause constipation, nausea, or stomach upset
  • Secure the large bottle away from children because accidental iron overdose is dangerous

Nutrient quality

87 Highest impact

A generic amino acid chelate offers moderate absorption potential, but the exact compound is not identified. The focused formula provides an effective targeted amount without unrelated active padding.

Ingredient transparency

85 Highest impact

The active amount and form are disclosed without a hidden blend. Full intake directions and non-active ingredients are not available in the supplied facts.

Customer satisfaction

72 High impact

The aggregate satisfaction metric is strong and supported by a useful volume of ratings. Specific firsthand feedback is absent, so recurring complaints and purpose fit cannot be assessed.

Value for money

95 Highest impact

The focused formula and a very low serving cost support practical value. Missing cofactors limit completeness but not the strong cost efficiency.

Report analysis

Goals

Hair Health
Impact
Highest effect
A- Goal FitA Strength of SupportD CoverageA Formula Quality
Iron · 25 mg

Chelated iron directly addresses low ferritin, a major nutrition-related cause of diffuse hair shedding. Evidence strongly supports correcting iron deficiency, while extra iron is unlikely to improve hair when status is adequate.

The 25 mg amount is substantial enough for deficiency-oriented support. The single-ingredient design is coherent, but iron can cause digestive effects and should be reserved for a demonstrated or likely need.

Study evidence
Iron Disputed 25 studies
Energy
Impact
Highest effect
B+ Goal FitA Strength of SupportD+ CoverageA Formula Quality
Iron · 25 mg

Iron directly supports oxygen transport and can meaningfully improve fatigue when low iron is the cause. The fully disclosed 25 mg chelated dose is substantial and well aligned with correcting an identified need.

Benefits are much less certain for people whose iron status is already adequate because the formula does not support alertness, stress resilience, or mitochondrial fuel through other pathways. The 25 mg dose may cause constipation or nausea and can contribute to excess iron, so use is best guided by ferritin and hemoglobin testing or clinician advice.

Study evidence
Iron Supportive 74 studies
Productivity Boost
Impact
High effect
C Goal FitB+ Strength of SupportD CoverageA+ Formula Quality
Iron · 25 mg

Iron can improve energy and clarity when deficiency limits oxygen transport. It offers no dependable productivity advantage for users with adequate iron status.

The amino-acid chelate supports absorption and the amount is clearly disclosed. Twenty-five milligrams may cause nausea or constipation and is unsuitable for iron-overload conditions without medical direction.

Study evidence
Iron Supportive 69 studies

Ingredients

IngredientAmount per serving
Iron (Iron Amino Acid Chelate)
25 mg
Gluten Free Adults 18–50 Dairy Free Sugar Free Vegetarian
Report overview
C- Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyA+ Value

A generic amino acid chelate offers moderate form quality, while the compressed tablet may be less gentle than a capsule or liquid. The iron amount is in the preferred range, and absorption cofactors are absent. The serving cost is highly efficient, and one measured unit keeps the serving convenient.

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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