Nature's Bounty Multi-Day Plus Iron supplement bottle
Nature's Bounty

Multi-Day Plus Iron

What We Researched
12 active ingredients analyzed · 3 inactive ingredients decoded · 6 brand certifications checked · 1 retailer compared · Last updated: Mar 2026
85
Product Score Good
86
Brand Score Good

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin A (as Beta-Carotene, Retinyl Acetate) 5000 IU 100%
Vitamin C (as Ascorbic Acid) 60 mg 100%
Vitamin D (as Ergocalciferol) 400 IU 100%
Vitamin E (as DL-Alpha-Tocopheryl Acetate) 30 IU 100%
Thiamine (as Thiamine Mononitrate, Vitamin B1) 1.5 mg 100%
Riboflavin (as Vitamin B2) 1.7 mg 100%
Niacin (as Niacinamide) 20 mg 100%
Vitamin B6 (as Pyridoxine Hydrochloride) 2 mg 100%
Folic Acid 400 mcg 100%
Vitamin B12 (as Cyanocobalamin) 6 mcg 100%
Pantothenic Acid (as D-Calcium Pantothenate) 10 mg 100%
Iron (as Ferrous Fumarate) 18 mg 100%
Bioavailability Good

Absorption Rating

  • Vitamin A (as Beta-Carotene, Retinyl Acetate) Good
  • Vitamin C (as Ascorbic Acid) Fair
  • Vitamin D (as Ergocalciferol) Fair
  • Vitamin E (as DL-Alpha-Tocopheryl Acetate) Fair
  • Thiamine (as Thiamine Mononitrate, Vitamin B1) Fair
  • Riboflavin (as Vitamin B2) Good
  • Niacin (as Niacinamide) Good
  • Vitamin B6 (as Pyridoxine Hydrochloride) Fair
  • Folic Acid Fair
  • Vitamin B12 (as Cyanocobalamin) Fair
  • Pantothenic Acid (as D-Calcium Pantothenate) Good
  • Iron (as Ferrous Fumarate) Fair
Other Ingredients Excellent

Fillers & Additives

  • Vegetable Cellulose
  • Gelatin
  • Contains Less Than 2% of
Efficacy Very Good

Dosage Analysis

  • Vitamin A (as Beta-Carotene, Retinyl Acetate) 5000 IU Under-dosed
  • Vitamin C (as Ascorbic Acid) 60 mg Under-dosed
  • Vitamin D (as Ergocalciferol) 400 IU Under-dosed
  • Vitamin E (as DL-Alpha-Tocopheryl Acetate) 30 IU Effective
  • Thiamine (as Thiamine Mononitrate, Vitamin B1) 1.5 mg Effective
  • Riboflavin (as Vitamin B2) 1.7 mg Effective
  • Niacin (as Niacinamide) 20 mg Effective
  • Vitamin B6 (as Pyridoxine Hydrochloride) 2 mg Effective
  • Folic Acid 400 mcg Effective
  • Vitamin B12 (as Cyanocobalamin) 6 mcg Effective
  • Pantothenic Acid (as D-Calcium Pantothenate) 10 mg Effective
  • Iron (as Ferrous Fumarate) 18 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
Vitamin A (as Beta-Carotene, Retinyl Acetate) 5000 IU 100%
Vitamin C (as Ascorbic Acid) 60 mg 100%
Vitamin D (as Ergocalciferol) 400 IU 100%
Vitamin E (as DL-Alpha-Tocopheryl Acetate) 30 IU 100%
Thiamine (as Thiamine Mononitrate, Vitamin B1) 1.5 mg 100%
Riboflavin (as Vitamin B2) 1.7 mg 100%
Niacin (as Niacinamide) 20 mg 100%
Vitamin B6 (as Pyridoxine Hydrochloride) 2 mg 100%
Folic Acid 400 mcg 100%
Vitamin B12 (as Cyanocobalamin) 6 mcg 100%
Pantothenic Acid (as D-Calcium Pantothenate) 10 mg 100%
Iron (as Ferrous Fumarate) 18 mg 100%

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Vegetable Cellulose Safe

Forms a vegetarian capsule shell alternative to gelatin.

Gelatin Safe

Forms the capsule shell that holds the supplement contents.

Contains Less Than 2% of Unknown

Price Comparison

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

Brand Trust Report
Nature's Bounty

Founded 1971 · Ronkonkoma, New York, USA · 156 products · naturesbounty.com

Certifications

6 certifications
Clean Label Project Verified Source
Consumerlab Verified
Health Canada Licensed Verified Source
Labdoor Verified Source
Usda Organic Verified Source
Fda Gmp Inspections Verified Source

Transparency

3 claims
Third Party Testing Claim — Verified Source
In House Testing — Verified Source

Violation History

1 incident
Recall Nature's Bounty Kids Multivitamin Gummies2023-06-02Source
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Frequently Asked Questions
Is Nature's Bounty Multi-Day Plus Iron a good supplement?

Nature's Bounty Multi-Day Plus Iron received a product quality score of 85/100 in GoodSupp's independent analysis, indicating strong overall quality. The product contains 12 active ingredients Of the 3 inactive ingredients, 2 are rated safe and 0 are flagged for review. The manufacturer, Nature's Bounty, holds a brand trust score of 86/100 with 6 verified certifications including Clean Label Project, Consumerlab, Health Canada Licensed, Labdoor.

What are the ingredients in Nature's Bounty Multi-Day Plus Iron?

Nature's Bounty Multi-Day Plus Iron contains 12 active ingredients: Vitamin A (as Beta-Carotene, Retinyl Acetate) (5000 IU), Vitamin C (as Ascorbic Acid) (60 mg), Vitamin D (as Ergocalciferol) (400 IU), Vitamin E (as DL-Alpha-Tocopheryl Acetate) (30 IU), Thiamine (as Thiamine Mononitrate, Vitamin B1) (1.5 mg), Riboflavin (as Vitamin B2) (1.7 mg), and 6 more. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Nature's Bounty Multi-Day Plus Iron safe to take?

Nature's Bounty Multi-Day Plus Iron 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 Nature's Bounty a trustworthy supplement brand?

Nature's Bounty receives a brand trust score of 86/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1971 and headquartered in Ronkonkoma, New York, USA, the company offers 156 products in their lineup. They hold 6 verified certifications including Clean Label Project, Consumerlab, Health Canada Licensed, Labdoor. Third-party certifications are independently verified and indicate the brand meets specific quality, purity, and manufacturing standards. Note: Nature's Bounty has 1 historical regulatory incident 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.