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NOW Foods Calcium Carbonate Powder 12 oz

  • Form: Powder
  • Supplement Type: Calcium
  • Diet: Kosher, Vegan
  • Allergens: Non-GMO

Last refreshed Aug 4, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.

Our verdict

A straightforward calcium carbonate powder with vegan and kosher certification, best for those who prefer mixing their own dose over swallowing capsules.

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ASIN: B004421K68Category: Calcium Supplements

Overview

NOW Foods calcium carbonate powder in a 12-ounce container, unflavored, certified kosher and vegan, non-GMO, positioned for bone health support.

Powder calcium lets you measure your own serving instead of relying on a fixed capsule count, and calcium carbonate is the more concentrated elemental-calcium form compared with calcium citrate. NOW pairs it with kosher and vegan certification.

  • 12 oz calcium carbonate powder
  • Kosher and vegan
  • Non-GMO
  • Marketed for bone health support

Who it's for

Vegans, vegetarians, and kosher-observant buyers who want a measurable calcium powder rather than capsules. Less suited to anyone who wants a pre-dosed capsule with no measuring involved.

Pros and cons

Pros
  • Vegan and kosher certified
  • Powder form allows flexible dosing
Cons
  • Requires measuring rather than a fixed capsule dose
  • Unflavored powder may have a chalky taste mixed into liquids
  • No magnesium or vitamin D listed alongside the calcium

Performance notes

Calcium carbonate depends on stomach acid for absorption, so it is typically taken alongside food rather than on an empty stomach.

Specifications

BrandNow
FormPowder
Supplement TypeCalcium
DietKosher, Vegan
AllergensNon-GMO
Count0.75 pounds
FlavorUnflavored
BenefitsBone Strength

Frequently asked questions

Is NOW Foods Calcium Carbonate Powder vegan?

Yes, it is certified both vegan and kosher.

What size does it come in?

It is sold in a 12-ounce container of unflavored powder.

Does this powder include vitamin D?

The listed attributes only mention calcium carbonate; no added vitamin D or magnesium is specified.