Calcium Plus

product on market Other (e.g. tea bag) 21st Century 🟢 Safety: 100/100
Brand: 21st Century
🟢 100/100

This product looks safe

  • No ingredients exceed tolerable upper intake levels
  • 57% of ingredients have research evidence
A Label Compliance Grade

Product Label

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Label Data

2 Caplet(s) Serving Size
60 Servings
Other Combinations Product Type
57% 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
1200 mg (120% DV)
80 mg (20% DV)
📊 Market median: 4002.0mg (1 products) 📚 20 studies (Tier A: 0, B: 2)
This product: 80mg
15 mg (100% DV)
✅ 1.4× RDA — within safe limits 📚 258 studies (Tier A: 6, B: 134)
RDA 11mg This product: 15mg UL 40mg
2 mg (100% DV)
✅ 2.2× RDA — within safe limits 📚 36 studies (Tier A: 0, B: 11)
RDA 0.9mg This product: 2mg UL 10mg
3.6 mg (180% DV)
✅ 1.6× RDA — within safe limits 📚 8 studies — no high-quality reviews
RDA 2.3mg This product: 3.6mg UL 11mg
500 mcg
📊 Market median: 3.0mg (58 products) 📚 2 studies — no high-quality reviews
This product: 0.5mg UL 20mg

Other Ingredients

Cellulose Croscarmellose Sodium Titanium Dioxide Silicon Dioxide Magnesium Stearate Artificial Colors

Label Claims — Verification

❓ 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)

Product Information

📋 Directions for Use

Directions: Take two (2) to four (4) caplets daily with any meal for maximum daily results, or as directed by a medical practitioner. Do not exceed recommended dosage.

⚠️ Warnings & Precautions

Keep out of reach of children.

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

Additional Information

Unconditionally guaranteed for purity, freshness and label potency. No Added Sugar, Salt, Yeast or Preservatives.

Calcium is necessary for healthy bones, teeth and cartilage. Calcium Plus combines essential nutrients and calcium which helps build bone mass in young adults and helps prevent bone loss in later years.*

20% FREE

Essential Nutrients Necessary For Strong & Healthy Bones, Teeth and Cartilage*

MADE IN USA

0206

Store at room temperature.

Product Details

UPC / SKU 7 40985 22326 0
DSLD Entry Date 2012-08-24
Product Type Other Combinations
Form Other (e.g. tea bag)
Brand 21st Century
DSLD ID 11140
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
PubMed DOI Cochrane
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
PubMed DOI Cochrane
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
PubMed DOI Cochrane
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
PubMed DOI Cochrane
A Calcium supplementation during pregnancy for preventing hypertensive disorders and related problems
Meta Analysis The Cochrane database of systematic reviews 2025
PubMed DOI Cochrane
A Dietary calcium supplementation for preventing colorectal cancer and adenomatous polyps
Systematic Review The Cochrane database of systematic reviews 2008
PubMed DOI Cochrane
A Calcium and vitamin D for increasing bone mineral density in premenopausal women
Systematic Review The Cochrane database of systematic reviews 2023
PubMed DOI Cochrane
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
PubMed DOI
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
PubMed DOI
A Calcium channel blockers versus other classes of drugs for hypertension
Systematic Review The Cochrane database of systematic reviews 2021
PubMed DOI
View all evidence for Electrolytes →

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