🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 50% of ingredients have research evidence
A Label Compliance Grade

Product Label

📸

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Label Data

2 Tablet(s) Serving Size
60 Servings
Single Vitamin and Mineral Product Type
50% Evidence Coverage

Supplement Facts — Evidence Check

400 IU (100% DV)
✅ Within RDA (0.7× RDA of 0.015 mg) 📚 604 studies (Tier A: 16, B: 251)
RDA 0.015mg This product: 0.01mg UL 0.1mg
Calcium
500 mg (50% DV)

Other Ingredients

Cellulose Stearic Acid Croscarmellose Sodium Magnesium Silicate Magnesium Stearate Polyvinyl Alcohol Talc PEG Polysorbate

Label Claims — Verification

Nutrient
All Other
Structure/Function
All Other (100% of products) Structure/Function (81% of products) Nutrient (71% of products) Approved Health (13% of products)

Target Groups

Adult (18 - 50 Years) Gluten Free

Product Information

📋 Directions for Use

Suggested Use: As a calcium supplement, take two (2) tablets twice daily with any meal or as directed by your healthcare provider. Do not exceed recommended dosage. Individual results may vary.

⚠️ Warnings & Precautions

Warning: Consult a healthcare provider prior to use if: pregnant, nursing, on medications, have a medical condition or are planning a medical procedure.

Stop use and contact a physician if adverse reactions occur.

Keep out of reach of children.

Do not use if product appears to be tampered with or seal is broken.

🧪 Formulation Notes

Vitamin D3 is added to assist with Calcium absorption and as support for healthy immune function.*

No added Sugar, Yeast, Preservatives, Artificial Flavors or Colors. Gluten Free.

Additional Information

Highly Absorbable to Support Bone Health

LABORATORY TESTED GUARANTEED QUALITY

500032 1014

Calcium Citrate is a highly absorbable form of Calcium, an important mineral for supporting bone health.* Calcium also works to support muscle and nerve function.*

Store at room temperature.

Product Details

UPC / SKU 7 40985 27491 0
DSLD Entry Date 2015-03-25
Product Type Single Vitamin and Mineral
Form Tablet or Pill
Brand 21st Century
DSLD ID 43628
Data Updated 2026-04-11

Research Evidence

511 Research Sources
57 Avg Quality Score
266 Meta Analysis
95 Systematic Review
76 Rct
49 Clinical Trial
12 Guideline
4 Regulatory Source
2 Cochrane Review
2 Other
2 Narrative Review
1 Openfda Safety
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 First-line drugs for hypertension
Meta Analysis The Cochrane database of systematic reviews 2018
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 Beta-blockers for hypertension
Meta Analysis The Cochrane database of systematic reviews 2017
A Calcium channel blockers versus other classes of drugs for hypertension
Systematic Review The Cochrane database of systematic reviews 2021
View all evidence for Calcium →

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