Calcium Citrate (600 mg, 90 Vegan Capsules) - Bone & Heart Health - Rejuvenation Therapeutics


Calcium Citrate (300 mg, 90 Vegan Capsules) - Bone & Heart Health, Non-GMO, Gluten-Free

Highly absorbable form of calcium



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Calcium is one of the most essential elements for the body, required in optimum quantities for the smooth functioning of various biological pathways. Calcium Citrate is a highly bioavailable form of calcium used to support optimal bone health.

Calcium Citrate Benefits

  • Promotes bone health and density
  • Optimizes bone strength and flexibility
  • Supports heart health
  • Super-absorbable calcium 

Product Details

Known for being the main component in our bones, calcium makes up 99% of our skeleton. However, calcium-rich foods provide calcium in limited amounts, at times it is not even possible to consume a calcium-rich diet.1 Supplementation with Calcium Citrate—a combination of calcium salt and citric acid, which is one of the most bioavailable forms of calcium—can help maintain those optimum calcium levels in the body.

The citrate form of calcium is found to be highly bioavailable and hence is a common form of calcium. Calcium Citrate has no effect on stomach acid and is independent of it, however, calcium carbonate—a counterpart of Calcium Citrate—neutralizes stomach acid and therefore is hard to digest. According to a clinical study published in The Journal of Clinical Pharmacology, oral ingestion of Calcium Citrate was found to increase serum calcium significantly more than Calcium carbonate, thus indicating that Calcium Citrate is a more bioavailable form of calcium.2

Supports bone health
The maximum percentage of the body's calcium is present in the bones and thus, bones serve as a reservoir for and a source of calcium. Calcium plays a crucial role in bone formation by osteoblasts (cells present in bones for bone synthesis) and bone resorption by osteoclasts (cells that breakdown bone tissues) that are coupled tightly in a delicate balance to maintain bone mass and strength.3 The calcium present in the blood and bones maintains a steady equilibrium.

Whenever a deficiency in calcium arises in the blood, calcium from the bones is drawn towards the blood to make up for the deficiency. Bone osteoclast cells breakdown the tissues in bones facilitating the transfer of calcium from bone tissue to the blood—the process known as bone resorption. And when the deficiency is made up, calcium is redeposited in the bone. Calcium deficiency leads to increased bone resorption, thus leading to bone loss and reduced bone formation.1

Supplementation with Calcium Citrate helps reverse bone resorption, thus preventing bone loss and aids in bone formation. According to a clinical study published in the Journal of Bone and Mineral Research, supplementation with Calcium Citrate partially reversed bone resorption and decreased bone loss in postmenopausal women.4

Stabilizes Bone density
Apart from bone formation and reversing bone resorption, Calcium also plays one more critical role in maintaining bone health—it stabilizes and increases bone density. According to a clinical study published in the American journal of therapeutics, supplementation with Calcium Citrate averted bone loss and led to stabilization of bone density in the spine, femoral neck and radial shift in postmenopausal women.5

Similarly, in another study published in the Archives of internal medicine, it was reported that supplementation with Calcium Citrate had a beneficial effect on Bone mineral density (BMD) in older male subjects.6

Supports heart health
Along with playing a role in maintaining the health of our connective tissues (bones), calcium also plays an important role in the contraction and relaxation of cardiac muscle tissues. Thus, adequate calcium intake is quite necessary to maintain cardiac health.7

Supplementation with Calcium Citrate helps maintain calcium levels in the body, thus leading to regulation and maintenance of heart health.

Suggested Use: Take 3 capsules daily, or as directed by your qualified healthcare professional.

Warning: Consult a healthcare professional prior to use if you are pregnant or nursing, taking any medications, or have any medical conditions. Keep out of reach of children. Store in a cool, dry place.


These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.


  1. Int. J. Res. Pharm. Biomed. Sci. 2013;4(2):659-68.
  2. The Journal of Clinical Pharmacology. 1999 Nov;39(11):1151-4.
  3. Therapeutic advances in musculoskeletal disease. 2012 Apr;4(2):61-76.
  4. Journal of Bone and Mineral Research. 1998 Feb;13(2):168-74.
  5. American journal of therapeutics. 1999 Nov;6(6):303-11.
  6. Archives of internal medicine. 2008 Nov 10;168(20):2276-82.
  7. PLoS One. 2013 Nov 5;8(11):e80895.

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