Mason Natural Ferrous Gluconate, 100 Green Tablets (27 mg per Tablet) supplement bottle
Mason Natural

Ferrous Gluconate, 100 Green Tablets (27 mg per Tablet)

What We Researched
1 active ingredient analyzed · 10 inactive ingredients decoded · 2 brand certifications checked · 2 retailers compared · Last updated: Mar 2026
62
Product Score Fair
66
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Iron (as ferrous gluconate) (elemental) 27 mg 150%
Bioavailability Fair

Absorption Rating

  • Iron (as ferrous gluconate) (elemental) Fair
Other Ingredients Very Poor

Fillers & Additives

  • Microcrystalline Cellulose
  • Croscarmellose Sodium
  • Vegetable Stearic Acid
  • Polyvinyl Alcohol
  • Titanium Dioxide High
  • Polyethylene Glycol Low
  • Magnesium Silicate
  • Fd&c blue #1 lake High
  • FD&C Yellow #5 Medium
  • FD&C Red #40 Medium
Efficacy Excellent

Dosage Analysis

  • Iron (as ferrous gluconate) (elemental) 27 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
Iron (as ferrous gluconate) (elemental) 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.

Croscarmellose Sodium Safe

Helps tablets break apart and dissolve quickly in the stomach.

Vegetable Stearic Acid Generally_safe

It is used to prevent ingredients from sticking to manufacturing equipment.

Polyvinyl Alcohol Generally_safe

It is used as a coating for tablets or capsules.

Titanium Dioxide Caution

Used as a whitening agent in tablet coatings and capsules.

Polyethylene Glycol Caution

It is used as a binder, coating agent, or to improve solubility.

Magnesium Silicate Generally_safe

It is used to improve powder flow and prevent clumping.

Fd&c blue #1 lake Unknown
FD&C Yellow #5 Caution

It is added to supplements to provide color.

FD&C Red #40 Caution

It is used to improve the appearance of the supplement.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$9$8$7$6$5 Mar 12 $7.28
iHerb

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

Brand Trust Report
Mason Natural

Founded 1967 · Miami Lakes, Florida, USA · 161 products · masonvitamins.com

Certifications

2 certifications
Consumerlab Verified Source
Fda Gmp Inspections Verified Source

Transparency

2 claims
Third Party Testing Claim — Claimed Source

Violation History

4 incidents
Recall Herbal Colon Cleanser Capsules2025-09-02Source
Recall Healthy Sense Daily Multiple with Iron and People's Choice Women's Daily Vitamins with Iron2022-11-17Source
Prop 65 Lead2017-03-10Source
Prop 65 Lead2016-03-28Source
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Frequently Asked Questions
Is Mason Natural Ferrous Gluconate, 100 Green Tablets (27 mg per Tablet) a good supplement?

Mason Natural Ferrous Gluconate, 100 Green Tablets (27 mg per Tablet) received a product quality score of 62/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 1 active ingredients Of the 10 inactive ingredients, 2 are rated safe and 4 are flagged for review. The manufacturer, Mason Natural, holds a brand trust score of 66/100 with 2 verified certifications including Consumerlab, Fda Gmp Inspections.

What are the ingredients in Mason Natural Ferrous Gluconate, 100 Green Tablets (27 mg per Tablet)?

Mason Natural Ferrous Gluconate, 100 Green Tablets (27 mg per Tablet) contains 1 active ingredients: Iron (as ferrous gluconate) (elemental) (27 mg). Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Mason Natural Ferrous Gluconate, 100 Green Tablets (27 mg per Tablet) safe to take?

Mason Natural Ferrous Gluconate, 100 Green Tablets (27 mg per Tablet) has been analyzed for ingredient safety across all its components. Of 10 inactive ingredients, 2 are rated safe. 4 ingredients are flagged for review: Titanium Dioxide, Polyethylene Glycol, FD&C Yellow #5. 'Caution' doesn't mean dangerous — it indicates the ingredient has some considerations worth being aware of, such as potential sensitivities or ongoing research. Always consult your healthcare provider before starting any new supplement, especially if you take medications or have underlying health conditions.

Is Mason Natural a trustworthy supplement brand?

Mason Natural receives a brand trust score of 66/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1967 and headquartered in Miami Lakes, Florida, USA, the company offers 161 products in their lineup. They hold 2 verified certifications including Consumerlab, Fda Gmp Inspections. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Mason Natural has 4 historical regulatory incidents on record, which are factored into the trust score.

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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.