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

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In Stock
  • Expiration Date: Jul 2021
  • Shipping Weight: 1.06 lbs (0.48 kg)
  • 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)
Bundle Offer
Save £3.32 when you purchase these items today for only £11.05
Total: £14.37
Combo Discount: - £3.32
Together: £11.05

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Product Overview


  • Pure Powder
  • Supports Bone Health
  • High Percentage of Calcium
  • A Dietary Supplement
  • Vegetarian/Vegan
  • Non-GMO Project Verified
  • Minerals
  • Family Owned Since 1968
  • GMP Quality Assured

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.

Suggested Use

Take 1/2 level teaspoon daily, preferably with a meal. For best results, blend into "pulpy" type juices such as tomato or orange juice.

Other Ingredients


Natural color variation may occur in this product.

Not manufactured with yeast, wheat, gluten, soy, milk, egg, fish, shellfish or tree nut ingredients. Produced in a GMP facility that processes other ingredients containing these allergens.


For adults only. Consult physician if pregnant/nursing, taking medication, or have a medical condition. Keep out of reach of children.

This product is sold by weight not volume.

Store in a cool, dry place after opening.

Supplement Facts
Serving Size: 1/2 Level Teaspoon (1.7 g)
Servings Per Container: about 200
  Amount Per Serving % Daily Value
Calcium (from Calcium Carbonate) 600 mg 60%
iHerb Customer Reviews
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

Used to make remineralizing toothpaste

Posted by 5729272630252974547 on Oct 19, 2016

The product is probably find but the toothpaste isn't what I wanted. Hoping to try new recipes in the future.

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Happy with quality.

Posted by 4632812310373028870 on Oct 07, 2016

I've been using this product for just over a year now as an ingredient in my toothpaste. Very happy!

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Great product but...

Posted by 4875443289692469350 on Sep 30, 2016

Which it was a loose powder. The capsules were messy in getting to the charcoal

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Great product

Posted by 4696003398387290309 on Sep 25, 2016

Exactly what I need for my tooth cleanser

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Very good

Posted by Reviewer3101438 on Sep 22, 2016

Great quality

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