Intended for healthcare professionals


Increased calcium intake may reduce risk of primary hyperparathyroidism

BMJ 2012; 345 doi: (Published 18 October 2012) Cite this as: BMJ 2012;345:e6646
  1. James Norman, chief of surgery
  1. 1Norman Parathyroid Center, Tampa, FL 33606, USA
  1. jnorman{at}

Moderate calcium supplementation in women should be encouraged

As little as 500 mg/ day of calcium may help


In recent years, many basic science and clinical studies have provided evidence that untreated primary hyperparathyroidism is associated with an increased incidence of hypertension, cardiomyopathy, myocardial infarction, atrial fibrillation, stroke, and even breast and prostate cancer.1 2 3 4 5 6 Primary hyperparathyroidism is now known to exacerbate or underpin many more diseases and conditions than the classic osteoporosis and kidney stones. Physicians no longer wait until one of the classic complications arises but take a more proactive approach and recommend parathyroidectomy once the diagnosis has been secured. Such an approach is now easier because parathyroidectomy has become available as an outpatient procedure over the past decade.7

A linked cohort study …

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