Klean Athlete Klean Iron - NSF Certified for Sport, 90 Tablets supplement bottle
Klean Athlete

Klean Iron - NSF Certified for Sport, 90 Tablets

What We Researched
1 active ingredient analyzed · 5 inactive ingredients decoded · 3 brand certifications checked · 2 retailers compared · Last updated: Mar 2026
87
Product Score Good
87
Brand Score Good

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Iron (as Ferronyl®, iron carbonyl) 27 mg 150%
Bioavailability Fair

Absorption Rating

  • Iron (as Ferronyl®, iron carbonyl) Fair
Other Ingredients Excellent

Fillers & Additives

  • Microcrystalline Cellulose
  • Ethylcellulose
  • Stearic Acid
  • Vegetable Stearate
  • Silica and coating (hypromellose, glycerin)
Efficacy Excellent

Dosage Analysis

  • Iron (as Ferronyl®, iron carbonyl) 27 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
Iron (as Ferronyl®, iron carbonyl) 27 mg 150%

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Microcrystalline Cellulose Safe

Adds bulk to small-dose supplements to make tablets/capsules a manageable size.

Ethylcellulose Generally_safe

It is used as a coating to control the release of supplement ingredients.

Stearic Acid Safe

Helps ingredients flow smoothly through manufacturing equipment.

Vegetable Stearate Safe

Prevents ingredients from sticking to equipment.

Silica and coating (hypromellose, glycerin) Unknown

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$18$18$16$16$14 Mar 12 $16.50
Vitacost

Prices shown at time of last check. Click a retailer to see current price. GoodSupp is not affiliated with any retailer.

Brand Trust Report
Klean Athlete

Founded 2012 · Pittsburgh, Pennsylvania, United States · 15 products · kleanathlete.com/

Certifications

3 certifications
Nsf Certified For Sport Verified Source
Fda Gmp Inspections Verified Source
Nsf Gmp Verified Source

Transparency

3 claims
Third Party Testing Claim — Verified Source
Testing Lab Disclosure — Verified Source
In House Testing — Verified Source
Related Supplements
Frequently Asked Questions
Is Klean Athlete Klean Iron - NSF Certified for Sport, 90 Tablets a good supplement?

Klean Athlete Klean Iron - NSF Certified for Sport, 90 Tablets received a product quality score of 87/100 in GoodSupp's independent analysis, indicating strong overall quality. The product contains 1 active ingredients with 90 servings per container. Of the 5 inactive ingredients, 3 are rated safe and 0 are flagged for review. The manufacturer, Klean Athlete, holds a brand trust score of 87/100 with 3 verified certifications including Nsf Certified For Sport, Fda Gmp Inspections, Nsf Gmp.

What are the ingredients in Klean Athlete Klean Iron - NSF Certified for Sport, 90 Tablets?

Klean Athlete Klean Iron - NSF Certified for Sport, 90 Tablets contains 1 active ingredients: Iron (as Ferronyl®, iron carbonyl) (27 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Klean Athlete Klean Iron - NSF Certified for Sport, 90 Tablets safe to take?

Klean Athlete Klean Iron - NSF Certified for Sport, 90 Tablets has been analyzed for ingredient safety across all its components. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Klean Athlete a trustworthy supplement brand?

Klean Athlete receives a brand trust score of 87/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 2012 and headquartered in Pittsburgh, Pennsylvania, United States, the company offers 15 products in their lineup. They hold 3 verified certifications including Nsf Certified For Sport, Fda Gmp Inspections, Nsf Gmp. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. No regulatory violations or FDA warning letters were found in our research.

What is magnesium good for?

Magnesium Good For is a topic many supplement consumers ask about. In the context of dietary supplements, understanding magnesium good for helps you make more informed choices about what you put in your body. The quality and form of ingredients matters significantly — two products listing the same ingredient can differ dramatically in bioavailability and effectiveness. GoodSupp analyzes over 250,000 supplement products to help consumers understand exactly what's in their supplements and whether the formulation meets quality standards.

How much magnesium per day?

The optimal dosage depends on your individual health needs, age, sex, and current nutrient levels. Recommended daily amounts are established by health authorities but may vary from therapeutic doses used in clinical research. It's important to check the Supplement Facts label for the exact amount per serving and compare it against the % Daily Value. Some supplements provide mega-doses well above the Daily Value, which may not be necessary and in some cases could be harmful — particularly for fat-soluble vitamins (A, D, E, K) that accumulate in the body. GoodSupp's efficacy analysis evaluates whether a product's dosages align with clinically studied amounts. Always consult your healthcare provider for personalized dosage recommendations.

What is zinc good for?

Zinc Good For is a topic many supplement consumers ask about. In the context of dietary supplements, understanding zinc good for helps you make more informed choices about what you put in your body. The quality and form of ingredients matters significantly — two products listing the same ingredient can differ dramatically in bioavailability and effectiveness. GoodSupp analyzes over 250,000 supplement products to help consumers understand exactly what's in their supplements and whether the formulation meets quality standards.

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Disclaimer: GoodSupp provides independent supplement quality analysis for informational purposes only. Scores are generated algorithmically based on ingredient profiles, brand certifications, and public records. This is not medical advice. Always consult a healthcare professional before starting any supplement regimen. Product data is sourced from manufacturer labels and public databases. GoodSupp is not affiliated with any supplement brand.