Skip to main content
ARS Home » Northeast Area » Boston, Massachusetts » Jean Mayer Human Nutrition Research Center On Aging » Research » Publications at this Location » Publication #349196

Title: Global dietary calcium intake among adults: a systematic review

item BALK, ETHAN - Brown University
item ADAM, GAELEN - Brown University
item LANGBERG, VALERIE - Brown University
item EARLEY, AMY - Evidera
item CLARK, PATRICIA - Hospital Infantil De Mexico
item EBELING, PETER - Monash University
item MITHAL, AMBRISH - Medanta Medicity
item RIZZOLI, RENE - Geneva University Hospital
item ZERBINI, CRISTIANO - Centro Paulista De Investigacao Clinica
item PIERROZ, DOMINIQUE - International Osteoporosis Foundation
item DAWSON-HUGHES, BESS - Jean Mayer Human Nutrition Research Center On Aging At Tufts University

Submitted to: Osteoporosis International
Publication Type: Review Article
Publication Acceptance Date: 10/17/2017
Publication Date: 10/20/2017
Citation: Balk, E.M., Adam, G.P., Langberg, V.N., Earley, A., Clark, P., Ebeling, P.R., Mithal, A., Rizzoli, R., Zerbini, C.A., Pierroz, D.D., Dawson-Hughes, B. 2017. Global dietary calcium intake among adults: a systematic review. Osteoporosis International. 28(12):3315-3324.

Interpretive Summary:

Technical Abstract: Purpose: Low calcium intake may adversely affect bone health in adults. Recognizing the presence of low calcium intake is necessary to develop national strategies to optimize intake. To highlight regions where calcium intake should be improved, we systematically searched for the most representative national dietary calcium intake data in adults from the general population in all countries. Methods: We searched 13 electronic databases and requested data from domain experts. Studies were double-screened for eligibility. Data were extracted into a standard form. We developed an interactive global map, categorizing countries based on average calcium intake and summarized differences in intake based on sex, age, and socioeconomic status. Results: Searches yielded 9780 abstracts. Across the 74 countries with data, average national dietary calcium intake ranges from 175 to 1233 mg/d. Many countries in Asia have average dietary calcium intake less than 500 mg/d. Countries in Africa and South America mostly have low calcium intake between about 400 and 700 mg/d. Only Northern European countries have national calcium intake greater than 1000 mg/d. Survey data for three-quarters of available countries were not nationally representative. Average calcium intake is generally lower in women than men, but there are no clear patterns across countries regarding relative calcium intake by age, sex, or socioeconomic status. Conclusions: The global calcium map reveals that many countries have low average calcium intake. But recent, nationally representative data are mostly lacking. This review draws attention to regions where measures to increase calcium intake are likely to have skeletal benefits.