Iron Complex by Advanced Nutrition by Zahler — Ingredients, Evidence & Safety

Product Label

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Safety Alerts

⚠️ Folate: 400mg is 400.0× the Tolerable Upper Intake Level (1.0mg)

Label Data

1 Capsule(s) Serving Size

100 Servings

Other Combinations Product Type

40% Evidence Coverage

Supplement Facts — Evidence Check

Vitamin C

60 mg (67% DV)

Folate

400 mcg DFE (100% DV)

⚠️ Exceeds Tolerable Upper Intake Level by 400.0× (UL: 1.0 mg) 📚 225 studies (Tier A: 10, B: 105)

RDA 0.4mg This product: 400mg UL 1.0mg

Vitamin B12

80 mcg (3333% DV)

📊 33.3× RDA — above typical dose 📚 138 studies (Tier A: 1, B: 44)

RDA 0.0024mg This product: 0.08mg

Ferrochel

25 mg (139% DV)

L-Histidine

100 mg

Other Ingredients

Rice Husk Concentrate Hypromellose

Label Claims — Verification

❓ Nutrient

❓ All Other

❓ Structure/Function

All Other (99% of products) Structure/Function (71% of products) Nutrient (61% of products) Approved Health (1% of products)

Target Groups

Vegetarian Adult (18 - 50 Years) Kosher Gluten Free Dairy Free

Product Information

📋 Directions for Use

Directions: Take 1 capsule daily with food, or as directed by a healthcare practitioner.

⚠️ Warnings & Precautions

Keep out of reach of children.

Do not use if safety seal is damaged or missing.

If pregnant, nursing or on medication, consult with your healthcare practitioner.

Warning: Accidental overdose of iron-containing products is a leading cause of fatal poisoning in children under 6. In case of accidental overdose, call a doctor or poison control center immediately.

🧪 Formulation Notes

Gentle & non-constipating Iron Zahler's Advanced Iron Complex is a highly bioavailable, non-constipating formula using the finest iron available. The mineral iron is essential for red blood formation and many other bodily functions.

Kosher Pareve Under the strict supervision of Rabbi SH. Stern & the orthodox union

Non-GMO Gluten free Dairy free Soy free

Vegetarian friendly

Advanced Iron complex Gentle & Non-Constipating Iron Formula

General Health

Additional Information

You may need additional supplements to support a healthy diet; consult your nutritionist for a formula that is right for you or contact us at 877-ASK-ZAHLER (877-275-9245) or ask@zahlers.com.

Dairy (Kosher) OU (Kosher) This product was manufactured in a GMP certified Facility

Store tightly closed in a cool, dry place.

Made in the USA

Product Details

UPC / SKU 8 48998 08078 5

DSLD Entry Date 2022-02-23

Product Type Other Combinations

Form Capsule

Brand Advanced Nutrition by Zahler

DSLD ID 260089

Data Updated 2026-04-11

Research Evidence

566 Research Sources

56 Avg Quality Score

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 Cochrane

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 Cochrane

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

View all evidence for Iron →