GNC Calcimate Plus with Magnesium & Vitamin D-3 supplement bottle
GNC

Calcimate Plus with Magnesium & Vitamin D-3

What We Researched
3 active ingredients analyzed · 12 inactive ingredients decoded · 5 brand certifications checked · 2 retailers compared · Last updated: Mar 2026
65
Product Score Fair
88
Brand Score Good

Product Analysis

Transparency Excellent

Supplement Facts

IngredientAmount% DV
Vitamin D (as Cholecalciferol, Vitamin D3) 50 mcg 250%
Calcium (as Calcium Citrate Malate) 800 mg 62%
Magnesium (as Magnesium Oxide) 100 mg 24%
Bioavailability Good

Absorption Rating

  • Vitamin D (as Cholecalciferol, Vitamin D3) Good
  • Calcium (as Calcium Citrate Malate) Good
  • Magnesium (as Magnesium Oxide) Poor
Other Ingredients Fair

Fillers & Additives

  • Microcrystalline Cellulose
  • Povidone
  • Hydroxypropyl Methylcellulose
  • Magnesium Stearate
  • Titanium Dioxide High
  • Silicon Dioxide
  • Croscarmellose Sodium
  • Sodium Starch Glycolate
  • Vegetable Acetoglycerides
  • Polyethylene Glycol Low
  • Carnauba Wax
  • Polysorbate 80 Medium
Efficacy Good

Dosage Analysis

  • Vitamin D (as Cholecalciferol, Vitamin D3) 50 mcg Effective
  • Calcium (as Calcium Citrate Malate) 800 mg Effective
  • Magnesium (as Magnesium Oxide) 100 mg Under-dosed

Supplement Facts

Ingredient Amount % Daily Value
Vitamin D (as Cholecalciferol, Vitamin D3) 50 mcg 250%
Calcium (as Calcium Citrate Malate) 800 mg 62%
Magnesium (as Magnesium Oxide) 100 mg 24%

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.

Povidone Generally_safe

It is used to hold ingredients together.

Hydroxypropyl Methylcellulose Safe

It is used as a coating for tablets and capsules.

Magnesium Stearate Safe

Prevents ingredients from sticking to manufacturing equipment during tableting.

Titanium Dioxide Caution

Used as a whitening agent in tablet coatings and capsules.

Silicon Dioxide Safe

Prevents clumping and ensures consistent dosing.

Croscarmellose Sodium Safe

Helps tablets break apart and dissolve quickly in the stomach.

Sodium Starch Glycolate Safe

Helps tablets break apart quickly for faster absorption.

Vegetable Acetoglycerides Unknown
Polyethylene Glycol Caution

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

Carnauba Wax Safe

Provides a glossy, protective coating on tablets.

Polysorbate 80 Caution

Helps mix oil and water-based ingredients.

Price Comparison

Price History

Tracked across major retailers. Updated periodically.

$29$28$27$26$25 Mar 12 $26.99
GNC

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

Brand Trust Report
GNC

Founded 1935 · Pittsburgh, Pennsylvania, USA · 200 products · gnc.com

Certifications

5 certifications
Informed Sport Verified Source
Consumerlab Verified Source
Fda Gmp Inspections Verified Source
Usda Organic Verified Source
Vegan Certified Verified Source

Transparency

3 claims
Third Party Testing Claim — Verified Source
Testing Lab Disclosure — Verified Source
In House Testing — Claimed
Related Supplements
Frequently Asked Questions
Is GNC Calcimate Plus with Magnesium & Vitamin D-3 a good supplement?

GNC Calcimate Plus with Magnesium & Vitamin D-3 received a product quality score of 65/100 in GoodSupp's independent analysis, suggesting some areas that could be improved. The product contains 3 active ingredients with 60 servings per container. Of the 12 inactive ingredients, 7 are rated safe and 3 are flagged for review. The manufacturer, GNC, holds a brand trust score of 88/100 with 5 verified certifications including Informed Sport, Consumerlab, Fda Gmp Inspections, Usda Organic.

What are the ingredients in GNC Calcimate Plus with Magnesium & Vitamin D-3?

GNC Calcimate Plus with Magnesium & Vitamin D-3 contains 3 active ingredients: Vitamin D (as Cholecalciferol, Vitamin D3) (50 mcg), Calcium (as Calcium Citrate Malate) (800 mg), Magnesium (as Magnesium Oxide) (100 mg). Notable high-dose ingredients include Vitamin D at 250% DV. Each ingredient's dosage, form, and safety rating is analyzed independently in GoodSupp's full product breakdown.

Is GNC Calcimate Plus with Magnesium & Vitamin D-3 safe to take?

GNC Calcimate Plus with Magnesium & Vitamin D-3 has been analyzed for ingredient safety across all its components. Of 12 inactive ingredients, 7 are rated safe. 3 ingredients are flagged for review: Titanium Dioxide, Polyethylene Glycol, Polysorbate 80. '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 GNC a trustworthy supplement brand?

GNC receives a brand trust score of 88/100 based on GoodSupp's independent analysis of certifications, regulatory history, and transparency practices. Founded in 1935 and headquartered in Pittsburgh, Pennsylvania, USA, the company offers 200 products in their lineup. They hold 5 verified certifications including Informed Sport, Consumerlab, Fda Gmp Inspections, Usda Organic. 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.

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.