Nature's Bounty Calcium Magnesium Zinc with Vitamin D3, 100 Coated Caplets supplement bottle
Nature's Bounty

Calcium Magnesium Zinc with Vitamin D3, 100 Coated Caplets

What We Researched
5 active ingredients analyzed · 4 inactive ingredients decoded · 6 brand certifications checked · 3 retailers compared · Last updated: Mar 2026
88
Product Score Good
86
Brand Score Good

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin D (as D3 Cholecalciferol) (600 IU) 15 mcg 75%
Calcium  (as Calcium Carbonate and Calcium Gluconate) 1,000 mg 77%
Magnesium  (as Magnesium Oxide and Magnesium Gluconate) 400 mg 95%
Zinc (as Zinc Gluconate and Zinc Citrate) 25 mg 227%
Bioavailability Good

Absorption Rating

  • Vitamin D (as D3 Cholecalciferol) (600 IU) Good
  • Calcium  (as Calcium Carbonate and Calcium Gluconate) Fair
  • Magnesium  (as Magnesium Oxide and Magnesium Gluconate) Poor
  • Zinc (as Zinc Gluconate and Zinc Citrate) Good
Other Ingredients Excellent

Fillers & Additives

  • Vegetable Cellulose
  • Carnauba Wax
  • Vegetable Glycerin
  • Vegetable Magnesium Stearate
Efficacy Excellent

Dosage Analysis

  • Vitamin D (as D3 Cholecalciferol) (600 IU) 15 mcg Effective
  • Calcium  (as Calcium Carbonate and Calcium Gluconate) 1,000 mg Effective
  • Magnesium  (as Magnesium Oxide and Magnesium Gluconate) 400 mg High
  • Zinc (as Zinc Gluconate and Zinc Citrate) 25 mg Effective

Supplement Facts

Ingredient Amount % Daily Value
Vitamin D (as D3 Cholecalciferol) (600 IU) 15 mcg 75%
Calcium  (as Calcium Carbonate and Calcium Gluconate) 1,000 mg 77%
Magnesium  (as Magnesium Oxide and Magnesium Gluconate) 400 mg 95%
Zinc (as Zinc Gluconate and Zinc Citrate) 25 mg 227%
Sodium 10 mg <1%

Other Ingredients

Inactive ingredients used in manufacturing. All rated for safety.

Vegetable Cellulose Safe

Forms a vegetarian capsule shell alternative to gelatin.

Carnauba Wax Safe

Provides a glossy, protective coating on tablets.

Vegetable Glycerin Safe

Helps form softgel capsule shells and acts as a humectant.

Vegetable Magnesium Stearate Safe

Prevents ingredients from sticking to equipment. Derived from vegetable sources.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$8$7$6$5$4 Mar 12 $5.84$5.79
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
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 Calcium Magnesium Zinc with Vitamin D3, 100 Coated Caplets a good supplement?

Nature's Bounty Calcium Magnesium Zinc with Vitamin D3, 100 Coated Caplets received a product quality score of 88/100 in GoodSupp's independent analysis, indicating strong overall quality. The product contains 5 active ingredients with 33 servings per container. All 4 inactive ingredients (fillers, binders, capsule materials) are rated safe — a clean formulation with no flagged additives. 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 Calcium Magnesium Zinc with Vitamin D3, 100 Coated Caplets?

Nature's Bounty Calcium Magnesium Zinc with Vitamin D3, 100 Coated Caplets contains 5 active ingredients: Vitamin D (as D3 Cholecalciferol) (600 IU) (15 mcg), Calcium  (as Calcium Carbonate and Calcium Gluconate) (1,000 mg), Magnesium  (as Magnesium Oxide and Magnesium Gluconate) (400 mg), Zinc (as Zinc Gluconate and Zinc Citrate) (25 mg), Sodium (10 mg). Notable high-dose ingredients include Zinc at 227% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is Nature's Bounty Calcium Magnesium Zinc with Vitamin D3, 100 Coated Caplets safe to take?

Nature's Bounty Calcium Magnesium Zinc with Vitamin D3, 100 Coated Caplets has been analyzed for ingredient safety across all its components. All 4 inactive ingredients — including capsule materials, fillers, and binders — are rated safe based on regulatory data and published safety research. This is a clean formulation with no controversial additives. 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.

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.