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21st Century, Calcium 500 + D3 Plus Extra D3, 90 Tablets

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21st Century, Calcium 500 + D3 Plus Extra D3, 90 Tablets

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21st Century, Calcium 500 + D3 Plus Extra D3, 90 Tablets

In Stock
90 Caplets
90 Caplets
200 Tablets
400 Caplets
  • Expiration Date: May 2020
  • Shipping Weight:
    0.19 kg
    Switch to Imperial units
  • Product Code: CEN-27519
  • UPC Code: 740985275191
  • Package Quantity: 90 Caplets
  • Dimensions:
    5.3 x 5.3 x 10.2 cm , 0.16 kg
    Switch to Imperial units

Product Rank:

Frequently Purchased Together
Product Overview


  • Compare Active Ingredients OS•CAL® Extra D3†
  • Calcium Supplement
  • Support for Bone Health
  • Easy to Swallow
  • 500 mg Calcium
  • 600 IU Vitamin D3
  • Laboratory Tested
  • Guaranteed Quality

Calcium is an important mineral for supporting bone health. Calcium aslo works to support muscle and nerve function. Vitamin D3 is added to assist with Calcium absorption and as support for immune function. Adequate Calcium and Vitamin D3 as part of a healthful diet, along with physical activity, may reduce the risk of osteoporosis in later life.

Suggested Use

As a calcium supplement, take one (1) tablet twice daily with any meal or as directed by your healthcare provider. Do not exceed recommended dosage, individual results may vary.

Other Ingredients

Croscarmellose sodium, cellulose, polyvinyl alcohol, titanium dioxide, stearic acid, peg, talc, magnesium stearate.

Contains a shellfish ingredient (oyster shell).

No added sugar, yeast, preservatives or artificial flavors.

†OS CAL® Extra D3 is a registered trademark of Glaxo Smith Kline, Pittsburgh, PA 15230


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. Store at room temperature.


While iHerb strives to ensure the accuracy of its product images and information, some manufacturing changes to packaging and/or ingredients may be pending update on our site. Although items may occasionally ship with alternate packaging, freshness is always guaranteed. We recommend that you read labels, warnings and directions of all products before use and not rely solely on the information provided by iHerb.
Supplement Facts
Serving Size: 1 Tablet
Amount Per Serving %DV
Vitamin D3 (as Cholecalciferol) 600 IU 150%
Calcium (from Oyster Shell) 500 mg 50%
Percent Daily Value (DV).
iHerb Customer Reviews

❤️❤️❤️ This formula is very cost and value effective ❤️❤️❤️

Posted by Nuray on January 3 2018 | Verified Purchase

I get a great quantity/quality product at a great price from 21st Century. Recommend it. ❤️😉

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Excellent recommend it

Posted by iHerb Customer on December 21 2016 | Verified Purchase

Excellent recommend it

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Posted by iHerb Customer on June 21 2016 | Verified Purchase

I needed some calcium tablets and I've decided to buy these. I wasn't wrong! These are good!

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Good price - waiting for results

Posted by Constandia on December 14 2015 | Verified Purchase

I bought this for my mum,( 64 years) combining with glucosamine plus omega 3. She is very satisfied with all of them, but I don't know exactly which of them make the best results. The stars here go to the amazing price.

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Great Product

Posted by iHerb Customer on July 6 2014 | Verified Purchase

Great value for money!

Thanks for your feedback!