Calcium 500+D3®
Single Vitamin & MineralBrand: 21st Century
Functions
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.
2 distinct active ingredients are disclosed in Supplement Facts.
Every active ingredient discloses a specific amount per serving.
2 ingredients report an established %DV per serving.
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
| Ingredient | Amount Per Serving | % Daily Value |
|---|---|---|
| Vitamin D3(Cholecalciferol) | 5 mcg | 25% |
| Calcium(Oyster Shell) | 500 mg | 38% |
Not Present
Other Ingredients
Target Groups
Label Claims
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
21st Century Calcium 500 + D3 Tablets
21st-century-vitamins4.8(1100)$10.9921st Century Calcium 500 + D3 Caplets
21st-century-vitamins4.8(1400)$5.49Lowest21st Century Calcium 500 + D3 400 Tablets
iHerb4.8(1400)$10.9921st Century Calcium 500 + D3 90 Cplts
Walmart - Pharma Frills4.0(8)$11.1121st Century Calcium Supplement Tablets
Target4.8(1800)$15.9921st Century Calcium + D3 Softgels
21st-century-vitamins4.8(657)$9.9921st Century Calcium Plus D3 1000 mg Tablets
Walmart - myREVCO4.7(3700)$11.6221st Century Calcium 600 + D3 Plus Minerals Caplets
21st-century-vitamins4.8(364)$5.49Lowest
Where to Buy Locally
Enter your city or ZIP code to find supplement & health stores in your area that may carry this product.
Showing representative supplement & health retailers — search above for stores in your area.
Sky Nutrition EP
4.8 (4)Vitamin & supplements store
1980 El Indio Hwy, Eagle Pass, TX 78852
GNC
4.5 (43)Vitamin & supplements store
455 S Bibb Ave, Eagle Pass, TX 78852
The Energy Den Nutrition
5.0 (4)Vitamin & supplements store
2125 Main St, Eagle Pass, TX 78852
Walgreens
3.2 (59)Vitamin & supplements store
2341 E Main St, Eagle Pass, TX 78852
Walmart Supercenter
4.5 (5825)Department store
496 S Bibb Ave, Eagle Pass, TX 78852
H-E-B
4.5 (2790)Grocery store
2135 E Main St, Eagle Pass, TX 78852
Top Notch Supplements
4.8 (15)Vitamin & supplements store
2400 Veterans Blvd Suite 6, Del Rio, TX 78840
Rock's Discount Vitamins - San Antonio Huebner
5.0 (938)Vitamin & supplements store
9820 Huebner Rd #102, San Antonio, TX 78240
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 citationsVitamin 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 citationsCalcium 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 citationsOverview 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 citationsUse 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 citationsRole 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.
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