Essential nutrient requirements of the elderly

Figures & data

Table 1 Recommended adult vitamin D intake

Country	Age (years)	Intake (mcg per day)*
Australia/New Zealand^Citation28	51–70	10
	>70	15
Canada^Citation21	51–70	15
	>70	20
Great Britain^Citation29	>65	10
Japan^Citation30	50–69	5.5^Table Footnote**
United States^Citation6	50–70	15
	>70	20

Notes:

* Adequate intake, No RDA exists;

** 1 mcg =40 IU.

Abbreviation: RDA, recommended daily allowance.

Table 2 Recommended daily allowances (RDA) for calcium in representative countries

Country	Sex	Age, years	RDA for calcium mg/day	Reference
Australia/New Zealand	Male	51–70	1,000	28
		>70	1,300
	Female	51–70	1,300
		>70	1,300
Canada/United States	Male	51–70	1,000	2
		>70	1,200
	Female	51–70	1,200
		>70	1,200
Japan	Male	50–69	700	30
		>70	700
	Female	50–69	650
		>70	600
United Kingdom	Male	>50	700	4
	Female	>50	700

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