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Now Foods, Calcium Carbonate, 100% Pure Powder, 12 oz (340 g)
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Now Foods, Calcium Carbonate, 100% Pure Powder, 12 oz (340 g)
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Now Foods, Calcium Carbonate, 100% Pure Powder, 12 oz (340 g)


119 Reviews
In Stock
  • Product Code: NOW-01245
  • UPC Code: 733739012456
  • Package Quantity: 12 oz (340 g)
  • Dimensions: 5.4 x 3 x 3 in, 0.9 lbs (0.41 kg)
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CA$4.74 (36%)
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Product Overview

  • Supports Bone Health
  • High Percentage of Calcium
  • GMP Quality Assured
  • A Dietary Supplement
  • Vegetarian/Vegan Product

NOW Calcium Carbonate is a basic calcium supplement that contains one of the highest concentrations of elemental calcium (about 40%), making it an optimal formulation for supporting healthy bones and teeth.

NOW has been selling powdered supplements since 1968 because of their distinct advantages. The powdered form is 100% pure, and free of fillers and preservatives, much lower in cost, easy to digest and can be taken in desired potencies. Powdered vitamins and minerals are truly the best way to take supplements.

Suggested Use

As a dietary supplement, take 1/2 level teaspoon daily, preferably with a meal. For best results, blend into "pulpy" type juices such as tomato or orange juice. Consider taking this product in combination with these NOW products: Magnesium, Vitamin D and Zinc.

Other Ingredients


Contains no sugar, salt, starch, yeast, wheat, gluten, corn, soy, milk, egg, shellfish or preservatives.


This product is sold by weight not volume.

Store in a cool, dry place. Please recycle.

Visit Manufacturer's Website
Supplement Facts
Serving Size: 1/2 Level Teaspoon (1.5 g)
Servings Per Container: About 227
  Amount Per Serving % Daily Value
Calcium (from Calcium Carbonate) 600 mg 60%

iHerb Customer Reviews

5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
For making toothpaste
No nasty fillers, flavours or preservatives. This powder has the consistency of icing sugar - mixes well in water and is tasteless. I use it to make toothpaste. If this review was helpful to you, please click YES below - thank you. For reviews of all the products I have purchased from iHerb, please click my username above.
Oct 28, 2013
Infantile febrile convulsions
My son is almost 10 months old, and has suffered twice with fever-related 'infantile febrile convulsions'. The doctors at the Children's Emergency department said they are 'common' and don't cause any harm - I just have to wait till he's 3 or 4 and hopefully he'll outgrow them. They said in the meantime he will probably be susceptible to fever-seizures each time he gets sick with a fever - that's a pretty terrifying prospect for a parent of a young baby. Long story short, as a terrified mum (convulsions are a horrible thing to have to watch), I googled one night, and found a comment from another mum about powdered calcium stopping her children's convulsions, so I jumped on iHerb and ordered this product (which I couldn't find in Australia). And then I waited.... About three weeks ago the product arrived. My son's fever spiked yesterday afternoon, and I automatically reached for the panadol. It did NOTHING for his fever. It climbed to 39.2 degrees. He was lethargic and glassy eyed. I tried cool face washers, stripping him off to a nappy, cool bath - nothing worked. I was waiting for the seizure to hit, and had the phone ready to call the ambulance. Then it hit me that I had the calcium carbonate in the cupboard. I mixed some up and gave it to him, and NO WORD OF A LIE, his fever went from 39.2 to 36.9 in less than 60 seconds. He went from burning up and glassy-eyed, to cool, happy, smiling, in less than a minute. I thought maybe it was a conincidence, due to the timing of also giving him panadol. But his fever spiked again at 11.30pm, and instead of going for the panadol, I reached for the calcium carbonate first this time. Again - instantly (less than a minute) his fever went from 39.4 degress down to 37 degrees, and his constitution went from miserable, glassy-eyed and (from what I know of past experience) bordering on seizure, to completely normal, happy child. He was back in his cot asleep within half an hour, whereas in the past we have had to a
Sep 22, 2012

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