TABLE 1.

Usual mean daily phosphorus intake and dietary recommended intake for phosphorus by gender and age¹

		Dietary recommended intake
Age	Usual phosphorus intake	EAR	UL	RDA
y	mg/d		mg/d
Men
1–3	1030 ± 26.3	380	3000	460
4–8	1145 ± 27.4	405	3000	500
9–13	1321 ± 35.4	1055	4000	1250
14–18	1681 ± 61.5	1055	4000	1250
19–30	1656 ± 53.4	580	4000	700
31–50	1727 ± 25.0	580	4000	700
51–70	1492 ± 30.0	580	4000	700
≥71	1270 ± 27.6	580	3000	700
Women
1–3	1030 ± 26.3	380	3000	460
4–8	1145 ± 27.4	405	3000	500
9–13	1176 ± 57.5	1055	4000	1250
14–18	1067 ± 29.8	1055	4000	1250
19–30	1120 ± 40.8	580	4000	700
31–50	1197 ± 25.0	580	4000	700
51–70	1106 ± 34.0	580	4000	700
≥71	985 ± 28.8	580	3000	700

¹Usual daily phosphorus intake data from What We Eat in America, NHANES 2005–2006 (unpublished data from Alanna Moshfegh, U.S. Department of Agriculture) are expressed as means ± SEs. The dietary recommended intake levels for phosphorus were established by the Institute of Medicine, Food, and Nutrition Board in1997 (23). EAR, estimated average requirements; UL, tolerable upper intake levels.