🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 67% of ingredients have research evidence
A Label Compliance Grade

Product Label

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Label Data

2 Capsule(s) Serving Size
90 Servings
Other Combinations Product Type
67% Evidence Coverage

Supplement Facts — Evidence Check

5 mcg (25% DV)
✅ Within RDA (0.3× RDA of 0.015 mg) 📚 604 studies (Tier A: 16, B: 251)
RDA 0.015mg This product: 0.005mg UL 0.1mg
Calcium
400 mg (31% DV)
200 mg (48% DV)
📊 Market median: 4002.0mg (1 products) 📚 20 studies (Tier A: 0, B: 2)
This product: 200mg

Other Ingredients

Gelatin Microcrystalline Cellulose Magnesium Stearate Titanium Dioxide

Label Claims — Verification

Nutrient
All Other
Structure/Function
All Other (99% of products) Structure/Function (85% of products) Nutrient (54% of products) Approved Health (3% of products)

Target Groups

Adult (18 - 50 Years) Gluten Free Dairy Free

Product Information

📋 Directions for Use

Directions: As a dietary supplement, take two capsules daily.

⚠️ Warnings & Precautions

Keep out of reach of children.

🧪 Formulation Notes

Magnesium & Vitamin D-3

Naturally supplies calcium, magnesium & other trace minerals essential for strong, healthy bones

Derived from fossilized coral

GNC Coral Calcium naturally supplies calcium, magnesium and numerous other essential trace minerals.

Gathered from fossilized coral from above the Okinawa sea, our coral is environmentally friendly. This harvesting process protects the delicate ecology of the sea and allows living reefs and algae to continue to thrive.

Potency verified by GNC procedure #4000. Conforms to USP <2091> for weight. Meets USP <2040> disintegration.

No artificial flavors, sodium free, no wheat, gluten free, no dairy.

GF Gluten free

Additional Information

Store in a cool, dry place.

400 mg Per 2 capsules

90-Day supply

Product Details

UPC / SKU 0 48107 17776 8
DSLD Entry Date 2020-06-24
Product Type Other Combinations
Form Capsule
Brand GNC
DSLD ID 223571
Data Updated 2026-04-11

Research Evidence

849 Research Sources
56 Avg Quality Score
450 Meta Analysis
152 Rct
137 Systematic Review
73 Clinical Trial
11 Regulatory Source
7 Other
7 Guideline
3 Openfda Safety
2 Cochrane Review
2 Observational
A Phosphate binders for preventing and treating chronic kidney disease-mineral and bone disorder (CKD-MBD)
Meta Analysis The Cochrane database of systematic reviews 2018
A Calcium supplementation (other than for preventing or treating hypertension) for improving pregnancy and infant outcomes
Meta Analysis The Cochrane database of systematic reviews 2024
A Calcium supplementation (other than for preventing or treating hypertension) for improving pregnancy and infant outcomes
Meta Analysis The Cochrane database of systematic reviews 2015
A Vitamin and mineral supplementation for maintaining cognitive function in cognitively healthy people in mid and late life
Meta Analysis The Cochrane database of systematic reviews 2018
A Calcium supplementation during pregnancy for preventing hypertensive disorders and related problems
Meta Analysis The Cochrane database of systematic reviews 2025
A Dietary calcium supplementation for preventing colorectal cancer and adenomatous polyps
Systematic Review The Cochrane database of systematic reviews 2008
A Calcium and vitamin D for increasing bone mineral density in premenopausal women
Systematic Review The Cochrane database of systematic reviews 2023
A Dietary sodium, sodium-to-potassium ratio, and risk of stroke: A systematic review and nonlinear dose-response meta-analysis
Meta Analysis Clinical nutrition (Edinburgh, Scotland) 2019
A The association between circulating magnesium and clinically relevant outcomes in patients with chronic kidney disease: A systematic review and meta-analysis
Meta Analysis Clinical nutrition (Edinburgh, Scotland) 2021
A Calcium channel blockers versus other classes of drugs for hypertension
Systematic Review The Cochrane database of systematic reviews 2021
View all evidence for Electrolytes →

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