Mason Natural Daily Multiple Vitamins with Iron, 100 Tablets supplement bottle
Mason Natural

Daily Multiple Vitamins with Iron, 100 Tablets

What We Researched
13 active ingredients analyzed · 18 inactive ingredients decoded · 2 brand certifications checked · 2 retailers compared · Last updated: Mar 2026
57
Product Score Poor
66
Brand Score Fair

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin A (as retinyl acetate and 17% as beta carotene) (3,000 IU) 824 mcg RAE‡ 90%
Vitamin C (as ascorbic acid) 60 mg 70%
Calcium (as dicalcium phosphate) 25 mg 2%
Iron (as ferrous fumarate) 18 mg 100%
Vitamin D2 (ergocalciferol) (400 IU) 10 mcg 50%
Vitamin E (as dl-Alpha tocopheryl acetate) (30 IU) 13.5 mg 90%
Vitamin B1 (as thiamine mononitrate) 1.5 mg 130%
Vitamin B2 (riboflavin) 1.7 mg 130%
Vitamin B3 (as niacinamide) 20 mg NE# 130%
Vitamin B6 (as pyridoxine hydrochloride) 2 mg 120%
Folate (400 mcg folic acid) 667 mcg DFE† 170%
Vitamin B12 (as cyanocobalamin) 6 mcg 250%
Pantothenic Acid (as d-calcium pantothenate) 10 mg 200%
Bioavailability Good

Absorption Rating

  • Vitamin A (as retinyl acetate and 17% as beta carotene) (3,000 IU) Good
  • Vitamin C (as ascorbic acid) Fair
  • Calcium (as dicalcium phosphate) Fair
  • Iron (as ferrous fumarate) Fair
  • Vitamin D2 (ergocalciferol) (400 IU) Fair
  • Vitamin E (as dl-Alpha tocopheryl acetate) (30 IU) Poor
  • Vitamin B1 (as thiamine mononitrate) Fair
  • Vitamin B2 (riboflavin) Good
  • Vitamin B3 (as niacinamide) Good
  • Vitamin B6 (as pyridoxine hydrochloride) Fair
  • Folate (400 mcg folic acid) Fair
  • Vitamin B12 (as cyanocobalamin) Fair
  • Pantothenic Acid (as d-calcium pantothenate) Good
Other Ingredients Very Poor

Fillers & Additives

  • Microcrystalline Cellulose
  • Stearic Acid
  • Magnesium Stearate
  • Croscarmellose Sodium
  • Paba
  • Hypromellose
  • Magnesium Silicate
  • Starch
  • Titanium Dioxide High
  • Polyethylene Glycol Low
  • Sucrose
  • Mineral Oil Medium
  • FD&C Yellow #5 Lake** High
  • FD&C Yellow #6 Lake Low
  • Glucose
  • Sodium Ascorbate
  • Mixed Tocopherols
  • BHT** Medium
Efficacy Good

Dosage Analysis

  • Vitamin A (as retinyl acetate and 17% as beta carotene) (3,000 IU) 824 mcg RAE‡ Effective
  • Vitamin C (as ascorbic acid) 60 mg Under-dosed
  • Calcium (as dicalcium phosphate) 25 mg Under-dosed
  • Iron (as ferrous fumarate) 18 mg Effective
  • Vitamin D2 (ergocalciferol) (400 IU) 10 mcg Under-dosed
  • Vitamin E (as dl-Alpha tocopheryl acetate) (30 IU) 13.5 mg Under-dosed
  • Vitamin B1 (as thiamine mononitrate) 1.5 mg Effective
  • Vitamin B2 (riboflavin) 1.7 mg Effective
  • Vitamin B3 (as niacinamide) 20 mg NE# Effective
  • Vitamin B6 (as pyridoxine hydrochloride) 2 mg Effective
  • Folate (400 mcg folic acid) 667 mcg DFE† Effective
  • Vitamin B12 (as cyanocobalamin) 6 mcg Effective
  • Pantothenic Acid (as d-calcium pantothenate) 10 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
Vitamin A (as retinyl acetate and 17% as beta carotene) (3,000 IU) 824 mcg RAE‡ 90%
Vitamin C (as ascorbic acid) 60 mg 70%
Calcium (as dicalcium phosphate) 25 mg 2%
Iron (as ferrous fumarate) 18 mg 100%
Vitamin D2 (ergocalciferol) (400 IU) 10 mcg 50%
Vitamin E (as dl-Alpha tocopheryl acetate) (30 IU) 13.5 mg 90%
Vitamin B1 (as thiamine mononitrate) 1.5 mg 130%
Vitamin B2 (riboflavin) 1.7 mg 130%
Vitamin B3 (as niacinamide) 20 mg NE# 130%
Vitamin B6 (as pyridoxine hydrochloride) 2 mg 120%
Folate (400 mcg folic acid) 667 mcg DFE† 170%
Vitamin B12 (as cyanocobalamin) 6 mcg 250%
Pantothenic Acid (as d-calcium pantothenate) 10 mg 200%

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.

Stearic Acid Safe

Helps ingredients flow smoothly through manufacturing equipment.

Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

Croscarmellose Sodium Safe

Helps tablets break apart and dissolve quickly in the stomach.

Paba Unknown
Hypromellose Safe

Forms vegetarian capsule shells. Dissolves easily in the stomach.

Magnesium Silicate Generally_safe

It is used to improve powder flow and prevent clumping.

Starch Generally_safe

It is used as a filler, binder, or thickener.

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.

Sucrose Generally_safe

It is used as a sweetener.

Mineral Oil Caution

It is used as a lubricant or emollient.

FD&C Yellow #5 Lake** Unknown
FD&C Yellow #6 Lake Caution

It is used to add a yellow color to supplements.

Glucose Generally_safe

It is used as a filler, sweetener, or to improve the flow of powders.

Sodium Ascorbate Safe

It helps to stabilize the pH and prevent oxidation.

Mixed Tocopherols Safe

Prevents oxidation and rancidity in oil-based supplements.

BHT** Unknown

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$8$7$6$5$4 Mar 12 $6.00$5.59
iHerb
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
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
Related Supplements
Frequently Asked Questions
Is Mason Natural Daily Multiple Vitamins with Iron, 100 Tablets a good supplement?

Mason Natural Daily Multiple Vitamins with Iron, 100 Tablets received a product quality score of 57/100 in GoodSupp's independent analysis, indicating several areas of concern that consumers should review. The product contains 13 active ingredients Of the 18 inactive ingredients, 7 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 Daily Multiple Vitamins with Iron, 100 Tablets?

Mason Natural Daily Multiple Vitamins with Iron, 100 Tablets contains 13 active ingredients: Vitamin A (as retinyl acetate and 17% as beta carotene) (3,000 IU) (824 mcg RAE‡), Vitamin C (as ascorbic acid) (60 mg), Calcium (as dicalcium phosphate) (25 mg), Iron (as ferrous fumarate) (18 mg), Vitamin D2 (ergocalciferol) (400 IU) (10 mcg), Vitamin E (as dl-Alpha tocopheryl acetate) (30 IU) (13.5 mg), and 7 more. Notable high-dose ingredients include Vitamin B12 at 250% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Mason Natural Daily Multiple Vitamins with Iron, 100 Tablets safe to take?

Mason Natural Daily Multiple Vitamins with Iron, 100 Tablets has been analyzed for ingredient safety across all its components. Of 18 inactive ingredients, 7 are rated safe. 4 ingredients are flagged for review: Titanium Dioxide, Polyethylene Glycol, Mineral Oil. '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.

How much vitamin d3 should i take daily?

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 does vitamin d do?

This is an important question for supplement consumers. The dietary supplement industry is largely self-regulated, which means product quality, ingredient transparency, and safety practices vary significantly between brands and products. The most reliable way to evaluate any supplement is to check for third-party testing certifications, review the full ingredient list and dosages, and research the brand's regulatory track record. GoodSupp's database of over 250,000 analyzed products provides independent quality scores, ingredient safety ratings, and brand trust reports to help you make evidence-based decisions.

How much vitamin d3 per day for a woman?

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.

Scan Any Supplement Instantly

Download GoodSupp to scan barcodes, check ingredient safety, and find the best supplements for your needs.

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.