Calcium 500+D3®

Single Vitamin & Mineral

Brand: 21st Century

Tablet or PillSingle Vitamin and MineralOn Market

Functions

Click to view full label

Net Contents

400 Tablet(s)

Serving Size

1 Tablet(s)

Servings Per Container

200

Supplement Form

Tablet or Pill

Bar Code (UPC/SKU)

7 40985 27523 8

Product Version

501068-0420N

Label Analysis

Objective insights generated automatically from the official DSLD label — a quick, factual read of how this product is formulated and disclosed.

2Active Ingredients

2 distinct active ingredients are disclosed in Supplement Facts.

100%Amount Transparency

Every active ingredient discloses a specific amount per serving.

2% Daily Value Coverage

2 ingredients report an established %DV per serving.

1Dietary Attributes

Label states: Gluten-Free.

This analysis is generated algorithmically from label data for educational reference only. It is not a product endorsement, ranking, or medical advice.

Allergen Guide

Contains

  • Shellfish

Free From

  • Gluten

Allergen flags are parsed automatically from the official label's claims and statements. Always verify against the physical product label before use, especially if you have a severe allergy.

Supplement Facts

Serving Size: 1 Tablet(s) · 2 per day

IngredientAmount Per Serving% Daily Value
Vitamin D3(Cholecalciferol)5 mcg25%
Calcium(Oyster Shell)500 mg38%

Not Present

Other Ingredients

MaltodextrinCelluloseFD&C Blue #1FD&C Yellow #5Croscarmellose SodiumHydroxypropyl MethylcelluloseMagnesium SilicateMagnesium StearatePolyethylene GlycolPolyvinyl AlcoholStearic AcidTitanium Dioxide

Target Groups

Adult (18 - 50 Years)Gluten Free

Label Claims

NutrientAll OtherStructure/Function

Directions & Suggested Use

Suggested/Recommended/Usage/Directions

Directions: As a calcium supplement, adults take one (1) tablet with any meal, twice daily or as directed by a healthcare provider.

Warnings & Precautions

Precautions re: All Other

Do not exceed recommended dosage.

Precautions re: Pregnant or Nursing or Prescription Medications

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

Precautions re: All Other

Stop use and contact a physician if adverse reactions occur.

Precautions re: Children

Keep out of reach of children.

Precautions re: All Other

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

Precautions re: Allergies

Contains shellfish (oyster).

Storage

Storage

Store at room temperature.

Formulation

Formulation re: Other

Bone health support

Formula re: Contains

500 mg calcium 5 mcg (200 IU) Vitamin D3

Formula re: Contains

Calcium is an important mineral for bone health. Vitamin D3 is added to assist with calcium absorption.

Formulation re: Does NOT Contain

No added yeast or artificial flavors. Gluten free

FDA Statements

FDA Statement of Identity

Calcium & Vitamin D3 Supplement

FDA Disclaimer Statement

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

Other Label Statements

General Statements: All Other Content

Compare Vs. OS-Cal calcium+D3 This product is not manufactured or distributed by GlaxoSmithKine, licensed user of the trademark OS-Cal.

General Statements: All Other Content

Individual results may vary.

Seals/Symbols

Guaranteed Quality Laboratory Tested

Manufacturer & Distributor

Manufacturer

21st Century HealthCare, Inc.

2119 S. Wilson St., Tempe, AZ, 85282, USA

Market Reference

$5.49 – $183.99· 40 listings
  • 21st Century Calcium 500 + D3 Tablets

    21st-century-vitamins4.8(1100)
    $10.99
  • 21st Century Calcium 500 + D3 Caplets

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  • 21st Century Calcium 500 + D3 400 Tablets

    iHerb4.8(1400)
    $10.99
  • 21st Century Calcium 500 + D3 90 Cplts

    Walmart - Pharma Frills4.0(8)
    $11.11
  • 21st Century Calcium Supplement Tablets

    Target4.8(1800)
    $15.99
  • 21st Century Calcium + D3 Softgels

    21st-century-vitamins4.8(657)
    $9.99
  • 21st Century Calcium Plus D3 1000 mg Tablets

    Walmart - myREVCO4.7(3700)
    $11.62
  • 21st Century Calcium 600 + D3 Plus Minerals Caplets

    21st-century-vitamins4.8(364)
    $5.49Lowest

Where to Buy Locally

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Research & Studies

  • Vitamin D: evolutionary, physiological and health perspectives

    M F. Holick - Current drug targets, 2011 - benthamdirect.com

    … D3 interacts with its vitamin D receptor in calcium regulating tissues to regulate calcium metabolism and bone health. … capsule containing 500 IU of vitamin D2 +500 IU of vitamin D3 they …

    2011583 citations
  • Vitamin D and health: evolution, biologic functions, and recommended dietary intakes for vitamin D

    MF Holick - Vitamin D: Physiology, molecular biology, and clinical …, 2010 - Springer

    … years and older who received 500 mg of calcium and 700 IU of vitamin D (70). … calcium in their diet and need to take a calcium supplement, I recommend either calcium citrate or calcium …

    2010296 citations
  • Calcium and vitamin D nutrition and bone disease of the elderly

    C Gennari - Public health nutrition, 2001 - cambridge.org

    … -controlled trial of the effect of calcium (500 mg/day) and vitamin D (700IU/day) in healthy community-based men and women older … Vitamin D-new horizons for the 21st century. Am. J. …

    2001404 citations
  • Overview of the conference “Vitamin D and Health in the 21st Century: an Update”

    PM Brannon, EA Yetley, RL Bailey… - The American journal …, 2008 - academic.oup.com

    … of Health conference “Vitamin D and Health in the 21st Century: … a National Institutes of Health roundtable discussion held after … However, calcium and vitamin D supplementation during …

    2008251 citations
  • Use of calcium or calcium in combination with vitamin D supplementation to prevent fractures and bone loss in people aged 50 years and older: a meta-analysis

    BMP Tang, GD Eslick, C Nowson, C Smith… - The lancet, 2007 - thelancet.com

    … the randomised trials in which calcium, or calcium in combination with vitamin D, was used to … of calcium, and 800 IU of vitamin D (for combined calcium plus vitamin D supplementation). …

    20072,029 citations
  • Role of Ca2+ and vitamin D in the prevention and treatment of osteoporosis

    MA Rodrıguez-Martınez, EC Garcıa-Cohen - Pharmacology & therapeutics, 2002 - Elsevier

    … Among other factors, Ca 2+ and vitamin D deficiencies are … The high prevalence of vitamin D deficiency in healthy elderly … The efficacy and safety of Ca 2+ and vitamin D supplements at …

    2002100 citations

Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2025-03-25. DSLD Label ID: 326320. This information is provided for educational reference only and is not medical advice. Always follow the product label and consult a doctor or pharmacist before use.