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NOW Foods Supplements, Calcium Carbonate Powder, High Percentage of Calcium, Supports Bone Health*, 12-Ounce

  • Based on 2,337 reviews
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Availability: In Stock.
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Arrives Tuesday, Jun 10
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Features

  • PURE POWDER/SUPPORTS BONE HEALTH*: Calcium Carbonate is a calcium supplement containing one of the highest concentrations of elemental calcium available
  • HIGH PERCENTAGE OF CALCIUM: Its high calcium content makes it an excellent form for the support of healthy bones and teeth*
  • CLASSIFICATIONS/CERTIFICATIONS: Kosher, Vegan, Non-GMO Project Verified, Soy Free
  • GMP Quality Assured: NPA A-rated GMP certification means that every aspect of the NOW manufacturing process has been examined, including our laboratory/testing methods (for stability, potency, and product formulation)
  • Packaged in the USA by a family owned and operated company since 1968

Description

Pure Powder High Percentage of Calcium NOW® Calcium Carbonate is a calcium supplement containing one of the highest concentrations of elemental calcium available. Its high calcium content makes it an excellent form for the support of healthy bones and teeth. Natural color variation may occur in this product. This product is sold by weight not volume.

Brand: NOW Foods


Item Form: Powder


Primary Supplement Type: Calcium


Unit Count: 12.0 Ounce


Flavor: Unflavored


Is Discontinued By Manufacturer ‏ : ‎ No


Product Dimensions ‏ : ‎ 3 x 3 x 5.4 inches; 14.4 ounces


Item model number ‏ : ‎ 1245


Department ‏ : ‎ Health and Beauty>Health and Wellness


Date First Available ‏ : ‎ October 8, 2007


Manufacturer ‏ : ‎ NOW Sports - Nutrition and Wellness


Country of Origin ‏ : ‎ Japan


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Tuesday, Jun 10

This item is non-returnable:

Non-returnable due to Food safety reasons

View our full returns policy here.

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Top Amazon Reviews


  • Great
Product Packaging: Standard Packaging
Great calcium carbonate powder for multi-use purposes. This is now my go to.
Reviewed in the United States on May 20, 2025 by Noname

  • Dissolves easily for drinking, also good for tooth powder
Product Packaging: Standard Packaging
This calcium mixes up with water easily for drinking, although it does leave residue in the glass you'll need to clean out. It also works very well in homemade tooth powder. Making our own tooth powder has substantially improved my daughter's tooth sensitivity. This is a very pure calcium, so we feel safe using it. We also don't react to it, as we do the calcium citrate, often made from corn. Homemade tooth powder gives a wonderful polished-feeling clean and helps a ton with sensitive teeth. If you want to try it and don't have your own recipe, this recipe works great for our family: Tooth Powder Ingredients ½ cup bentonite clay - Pure Clay - Premium Calcium Bentonite Clay Food Grade (Montmorillonite) Powder - Laboratory Tested for Purity - Internal Detox and Cleanse - Mask, Body Wrap and Bath ½ cup calcium Carbonate Powder (not Citrate) - NOW Calcium Carbonate Powder, 12-Ounces 2 tbsp baking soda 4 tbsp Xylitol - Zveet Birch Xylitol Sweetener 5lb (Made in USA) 20 drops of peppermint essential oil or to taste Put all ingredients in a jar and shake well to mix. Ingredients – LARGE BATCH – Makes a 2-quart jar Weights are approximate. Adjust as needed. 16 oz bentonite clay - Pure Clay - Premium Calcium Bentonite Clay Food Grade (Montmorillonite) Powder - Laboratory Tested for Purity - Internal Detox and Cleanse - Mask, Body Wrap and Bath 16 oz calcium Carbonate Powder (not Citrate) - NOW Calcium Carbonate Powder, 12-Ounces 4 oz baking soda 12 oz Xylitol - Zveet Birch Xylitol Sweetener 5lb (Made in USA) 1 teaspoon peppermint essential oil or to taste Put all ingredients except peppermint oil in a bowl and mix well under a vent-a-hood because the clay will give off a lot of powder dust into the air. Sprinkle around the peppermint oil and mix well again. Put in a 2-quart jar. Recipe adapted from Wellness Mama. ... show more
Reviewed in the United States on June 6, 2016 by Bookwyrm

  • Tasteless + Works Well As An Antacid = Satisfied
Product Packaging: Standard Packaging
Decided to go this route due to not being satisfied with some of the disgusting tasting name-brand antacid tablets. In fact, look at the ingredients of some tablets and you'll find Carmine: a food coloring made from gound up bugs. No, I am not joking! Search for yourself. Anyway, the active ingredient in antacid tablets is Calcium Carbonate so I had the idea to check if it was possible to simply buy pure Calcium Carbonate powder. That way there'd be no additives such as Carmine or sugar or salt, etc. And, therefore, I figured it would be tasteless, which is what I wanted. And that's how I found and bought this product. It is indeed tasteless and it works well as an antacid. In fact, it works better than the tablets in cases where I wake up due to some acid reflux. This fine powder does a better job of neutralizing the acid in my throat than chewables ever did. Trying to swallow the powder dry can be difficult because it is so dry. What I do is keep about a teaspoon of the powder in a small container (which will hold a few ounces of water) with sealable lid. So, when I need it, I just remove the lid, add some water, put the lid back on, shake vigorously, then drink. That way it flows over any acid in my throat (which stops the burning) on its way down to my stomach where it relieves the acid indigestion there. Job done and no unpleasant lingering taste. ... show more
Reviewed in the United States on June 14, 2023 by Amazon Customer

  • No more horse pills!
Product Packaging: Standard Packaging
Finally! A calcium supplement that's NOT the size of a horse pill. Zero flavor. Dissolves enough so it's easy to swallow.
Reviewed in the United States on January 30, 2025 by LC

  • Homemade Chalk Paint
Product Packaging: Standard Packaging
Found recipe to make your own chalk paint from acrylic paint. By adding the recommended amount of calcium carbonate powder, I found it to be quite acceptable.
Reviewed in the United States on May 20, 2024 by Emma McInvale

  • Good for my tomatoes and peppers
Product Packaging: Standard Packaging
I have a couple of container garden boxes at my small condo in Florida. When I get there in the fall, I like to plant some cucumbers, tomatoes and peppers to have later in the winter. Previously, I had been having trouble with the tomatoes and peppers having large black spots on the bottom. I tracked it down to a fungus enabled by too acidic a soil. Last year, I bought a pack of "Tums", crushed them up, and spread them in he containers. It helped a lot, but was a messy and difficult process, as they had to be crushed and dissolved in water, which takes a while. While searching for an alternative, I came upon this stuff. Not only is it easier to work with but it's also a lot cheaper. The only downside is that the powder is so fine that it can get messy if you are not careful. The first time I used it, I made kind of a mess. Since then, it's been fine. ... show more
Reviewed in the United States on April 9, 2024 by Dennis L. Odoms

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