. Author manuscript; available in PMC: 2022 Sep 15.

Published in final edited form as: Proc Nutr Soc. 2021 Mar 5;80(3):356–364. doi: 10.1017/S0029665121000550

Table 3. Dietary reference values for calcium (mg/d).

United Kingdom^a			US/Canada^b			European Union^c
Lifestage	Males	Females	Lifestage	Males	Females	Lifestage	Males	Females
Children
1-3y	350	350	1-3y	700	700	1-3y	450	450
4-6y	450	450	4-8y	1000	1000	4-10y	800	800
7-10y	550	550
Adolescents
11-14y	1000	800	9-13y	1300	1300	11-17y	1150	1150
15-18y	1000	800	14-18y	1300	1300	18-24y	1000	1000
Adults
19-50y	700	700	19-50y	1000	1000	≥25y	950	950
50+y	700	700	51-70y	1000	1200
			>70y	1200	1200
Pregnancy and lactation
Pregnancy		+0	Pregnancy		+0	Pregnancy		+0
Lactation^*		+550^*	Lactation		+0	Lactation		+0

Reference Nutrient Intake, developed and published by the Committee on the Medical Aspects of Food Policy1991⁽²⁾ and re-evaluated and endorsed in 1998 ⁽¹⁴⁾

Recommended Dietary Allowance, developed and published by the Institute of Medicine 2011⁽⁸⁾

Population Reference Intake, developed and published by the European Food Safety Authority 2015⁽⁴¹⁾

Lactation for 0-4 months and >4 months; indicated in 1998 that the increment “may not be necessary” ⁽¹⁴⁾