Calcium 1000 mg®
Single Vitamin & MineralBrand: 21st Century
Functions
Net Contents
90 Tablet(s)
Serving Size
1 Tablet(s)
Servings Per Container
90
Supplement Form
Tablet or Pill
Bar Code (UPC/SKU)
7 40985 27070 7
Product Version
500828-0521
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 a %DV; 1 meet or exceed 100% DV.
Label states: Non-GMO, 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
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) · 1 per day
| Ingredient | Amount Per Serving | % Daily Value |
|---|---|---|
| Vitamin D3(Cholecalciferol) | 20 mcg | 100% |
| Calcium(Calcium Carbonate) | 1000 mg | 77% |
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 daily with any meal or as directed by a healthcare provider.
Warnings & Precautions
Precautions re: All Other
Do not exceed recommended dosage. Stop use and contact a physician if adverse reactions occur. Do not use if product appears to be tampered with or seal is broken.
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: Children
Keep out of reach of children.
Storage
Storage
Store at room temperature.
Formulation
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.
Formula re: Contains
Calcium Plus D3 | 20 mcg (800 IU)
Formulation re: Other
One daily calcium Bone health support Vitamin D3 added to assist calcium absorption
Formulation re: Does NOT Contain
Gluten free | Non-GMO
Formulation re: Other
Guaranteed quality Laboratory tested Trusted quality for over 30 years
FDA Statements
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.
FDA Statement of Identity
Calcium & Vitamin D3 Supplement
Other Label Statements
General Statements: All Other Content
Individual results may vary.
Manufacturer & Distributor
Manufacturer
21st Century HealthCare, Inc.
2119 S. Wilson St., Tempe, AZ, 85282, USA
Market Reference
21st Century Calcium 1000 mg Tablets
21st-century-vitamins4.7(3800)$6.4921st Century Calcium Magnesium Zinc + D3 250 Tablets
Target4.7(36000)$14.9921st Century Calcium Citrate + D3 Petites Coated Tablets 200 Ea
eBay - fai9975$15.2321st Century Calcium Plus D3 Softgels
21st-century-vitamins4.7(605)$9.9921st Century, Calcium Citrate Maximum + D3 Tablets, 75 Ea
Walmart - Pharma Frills$47.74Pack of 12-Calcium+D 1000Mg-800 Tab 90 By 21st Century
AmericanPharmaWholesale.com$54.9921st Century Cal Mag Zinc + D3 Tablets
Swanson Health Products4.8(5600)$5.4921st Century Calcium Citrate +D Caplets
Walmart - Healthmix4.8(10)$12.00
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.
Vitamin Store/All The Best 3.0
4.9 (37)Vitamin & supplements store
Via Casilina, 251, 00182 Roma RM
Vitaminstore Roma Termini
4.6 (49)Vitamin & supplements store
Viale Castro Pretorio, 102, 00185 Roma RM
Rootminded - Ashwagandha Italia
5.0 (1)Vitamin & supplements store
Via in Lucina, 7, 00186 Roma RM
XFORMA Store Roma
5.0 (95)Vitamin & supplements store
Via Enea, 42, 00181 Roma RM
NUTRIFIT Integratori Sportivi
4.9 (196)Vitamin & supplements store
Via Sesto Fiorentino, 25, 00146 Roma RM
Fitness Nutrition - Integratori alimentari
4.8 (103)Sports nutrition store
Via Oderisi da Gubbio, 186, 00146 Roma RM
Vitaminstore Roma
4.8 (154)Vitamin & supplements store
Via Tor de' Schiavi, 265c, 00171 Roma RM
Vitaminstore Ostiense
4.7 (33)Vitamin & supplements store
Via Pellegrino Matteucci, 104H, 00154 Roma RM
Research & Studies
Calcium deficiency worldwide: prevalence of inadequate intakes and associated health outcomes
J Shlisky, R Mandlik, S Askari, S Abrams, JM Belizan… - 2022 - Wiley Online Library
… healthy participants with a mean calcium intake of >1000 mg/day found that calcium intakes of <800 mg… well-documented benefits of calcium supplementation beyond bone health is a …
2022302 citationsCalcium intake and health
G Cormick, JM Belizán - Nutrients, 2019 - mdpi.com
… Ratio 1.17 (95% CI 1.02–1.34)] was reported in only one trial in women aged 50 to 79 years who received vitamin D3 400 IU supplements in combination with 1000 mg of calcium …
2019571 citationsCalcium supplements and fracture prevention
DC Bauer - New England Journal of Medicine, 2013 - Mass Medical Soc
… of daily supplementation with more than 1000 mg of calcium (or … daily supplementation with 1000 mg or less of calcium or 400 … for or against the use of calcium supplements in men and …
2013183 citationsCalcium supplements: benefits and risks
IR Reid, SM Bristow, MJ Bolland - Journal of internal medicine, 2015 - Wiley Online Library
… apparently healthy people – throughout the world – develop and live satisfactorily on a dietary intake of calcium which lies between 300 mg and over 1000 mg a … A total of 570 healthy …
2015210 citationsCalcium, is it better to have less?—Global health perspectives
CS Shin, KM Kim - Journal of cellular biochemistry, 2015 - Wiley Online Library
… whether supplementation of 1,000 mg of elemental calcium to subjects already taking … 1,000 mg of dietary calcium is safe. Although dietary calcium is preferable to supplemental calcium…
201517 citationsDietary calcium and health
HE Theobald - Nutrition Bulletin, 2005 - Wiley Online Library
… (RNI) for calcium for adults aged over 19 years is 700 mg/day; … intake of 1500 mg calcium/day in the form of supplements is … of 1000 mg calcium per person per day; average calcium …
2005381 citations
Data sourced from the U.S. National Institutes of Health, Office of Dietary Supplements Dietary Supplement Label Database (DSLD) · Label entered 2025-04-24. DSLD Label ID: 334868. 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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