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Source Naturals, Calcium & Magnesium, 300 mg, 250 Tablets

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In Stock
  • Expiration Date: Aug 2019
  • Shipping Weight: 1.42 lbs (0.64 kg)
  • Product Code: SNS-00304
  • UPC Code: 021078003045
  • Package Quantity: 250 Tablets
  • Dimensions: 6.3 x 3.3 x 3.3 in, 1.2 lbs (0.54 kg)
Product Overview


  • Dietary Supplement
  • Amino Acid Chelate with Vitamin D-3

Calcium and magnesium work together in several key physiological processes. They are important in the regulation of blood pressure and are responsible for healthy muscle function. Calcium is needed for muscle contraction and magnesium for muscle relaxation. In addition, they are both components of skeletal tissue and magnesium is necessary for calcium's absorption into the bones.

Suggested Use

1 to 3 tablets daily with meals

Other Ingredients

Sorbitol, modified cellulose gum, stearic acid, and colloidal silicon dioxide

Contains no yeast, dairy, egg, gluten or wheat. Contains no salt, preservatives, or artificial color, flavor or fragrance.


Note: If you are pregnant, may become pregnant, or breastfeeding, consult your health care professional before using this product.

Do not use if either tamper-evident seal is broken or missing. Keep out of the reach of children.

Supplement Facts
Serving Size: 1 Tablet
  Amount Per Serving %DV
Vitamin D-3 (as cholecalciferol) 500 IU 125%
Calcium (as calcium amino acid chelate) 200 mg 20%
Magnesium (as magnesium amino acid chelate) 100 mg 25%
iHerb Customer Reviews

Nice Calcium & Magnesium supplement with a side of Vit D

Posted by 5329781980918964967 on May 12, 2014

These are perfect for someone looking for a lower dose of Magnesium and Calcium with an added bonus of Vit D. The only draw back is that the pills are very large and could be difficult to swallow whole. But you could break them up if needed.

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Posted by 5023709542728629180 on Mar 05, 2014


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Cal Mag

Posted by Reviewer3221460 on Jan 27, 2012

This a good product it really helps.

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Good Product

Posted by Reviewer2145777 on Oct 25, 2011

Felt more relaxed and different than usual.

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finally a calcium supplement

Posted by Reviewer1250873 on Apr 01, 2010

Have searched very hard for a calcium supplement without much magnesium that sits well and does not cause loose bowels. This works very well.

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