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Earth Source Food Koji Fermented Iron 27 mg

product on market Capsule Solgar Safety: 100/100
100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • Limited research evidence available for ingredients
B Label Compliance Grade
Label

Product Label

Label for Earth Source Food Koji Fermented Iron 27 mg
Open Full PDF View on NIH DSLD →
Details

Label Data

1 Vegetable Capsule(s)
Serving Size
60
Servings
Mineral
Product Type
0%
Evidence Coverage
Ingredients

Supplement Facts — Evidence Check

Iron
27 mg (150% DV)

Other Ingredients

Cellulose Microcrystalline Cellulose Rice Rice Extract Blend
Claims

Label Claims — Verification

Unverified Nutrient
Unverified All Other
Unverified Structure/Function
Info

Product Information

Directions for Use

Suggested use: As a dietary supplement for adults, take one (1) vegetable capsule daily, preferably with a meal or as directed by a healthcare practitioner.

Warnings & Precautions

If you are pregnant, nursing, taking any medications or have any medical condition, please consult your healthcare practitioner before taking any dietary supplement.

Discontinue use and consult your healthcare practitioner if any adverse reactions occur. Do not use if outer bottle seal is missing or damaged.

Warning: Accidental overdose of iron-containing products is a leading cause of fatal poisoning in children under six. Keep this product out of reach of children. In case of accidental overdose, call a doctor or Poison Control Center immediately.

Formulation Notes

Free of: Gluten, wheat, dairy, soy, yeast, sugar, sodium, artificial flavor, sweetener and color.

Solgar's KOF-K certification #K-1250

Clinically studied food-based source of iron Contains Ultimine, a patent pending slow-release form of iron

Gentle on the stomach and easy to absorb Supports red blood cell production and helps deliver oxygen to cells Supports energy utilization

Food fermented

Gluten, wheat & dairy free Non-GMO

Suitable for Vegans

Crescent M Halal

Solgar Earth Source Koji Fermented Iron starts by growing the koji culture on cooked rice. As the koji matures and ferments, it's enriched with iron. Then, it's harvested and processed into powdered Koji Iron. This form of iron is clinically studied to be released more slowly giving you a steadier absorption rate when compared to more common sources of iron.

Additional Information

Store at room temperature.

GFCO.org (Gluten-Free Certification Organization) Non GMO Certified by NSF

Crescent M Halal K Parve (Kosher)

"Koji" is the Japanese term for "cultured grain." Fermentation is a natural process that preserves and enriches food. For over 2,000 years, the koji fermentation method has been used in Japan for making vinegar, miso and soy sauce.

Metadata

Product Details

UPC / SKU0 33984 00535 8
DSLD Entry Date2024-04-23
Product TypeMineral
FormCapsule
BrandSolgar
DSLD ID304566
Data Updated2026-04-11
Research

Research Evidence

566
Research Sources
56
Avg Quality
240
Meta Analysis
100
Clinical Trial
74
Systematic Review
71
Guideline
58
Rct
11
Cochrane Review
4
Regulatory Source
2
Other
2
Narrative Review
1
Observational
1
Openfda Safety
A Systematic review and meta-analysis of intravenous iron therapy for patients with heart failure and iron deficiency
Meta Analysis Nature medicine 2025 PubMed DOI
A Intermittent iron supplementation for reducing anaemia and its associated impairments in adolescent and adult menstruating women
Meta Analysis The Cochrane database of systematic reviews 2019 PubMed DOI
A Oral or parenteral iron supplementation to reduce deferral, iron deficiency and/or anaemia in blood donors
Meta Analysis The Cochrane database of systematic reviews 2014 PubMed DOI
A Serum or plasma ferritin concentration as an index of iron deficiency and overload
Meta Analysis The Cochrane database of systematic reviews 2021 PubMed DOI
A Non-invasive diagnostic tests for Helicobacter pylori infection
Meta Analysis The Cochrane database of systematic reviews 2018 PubMed DOI
A Hypoxia-inducible factor stabilisers for the anaemia of chronic kidney disease
Meta Analysis The Cochrane database of systematic reviews 2022 PubMed DOI
A Wheat flour fortification with iron and other micronutrients for reducing anaemia and improving iron status in populations
Meta Analysis The Cochrane database of systematic reviews 2021 PubMed DOI
A Fortification of condiments and seasonings with iron for preventing anaemia and improving health
Meta Analysis The Cochrane database of systematic reviews 2023 PubMed DOI
A Screening and Supplementation for Iron Deficiency and Iron Deficiency Anemia During Pregnancy: US Preventive Services Task Force Recommendation Statement.
Guideline JAMA 2024 PubMed DOI
A Psychiatric and cognitive outcomes of iron supplementation in non-anemic children, adolescents, and menstruating adults: A meta-analysis and systematic review
Meta Analysis Neuroscience and biobehavioral reviews 2025 PubMed DOI
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This product page is for informational purposes only and does not constitute medical advice. Always consult your healthcare provider before taking any supplement.