High iodine intake by preschool children in Miyagi prefecture, Japan

Table 5 Daily dietary intake of iodine, reported in selected recent publications for Japanese

Reference		Subjects						Iodine intake							Notes
No.	Authors	Men or boys		Women or girls		Adults or children			μg/day			μg/kg/day
No.	Authors	No.	Average age	No.	Average age	No.	Average age		Men or boys	Women or girls	Adults or children	Men or boys	Women or girls	Adults or children
The present study		160	3–6	136	3–6	296	3–6	GM	191	158	175	9.54	8.26	8.93	For details, see the materials and Methods section
								MED	136	116	127	6.64	6.05	6.28	For details, see the materials and methods section
7	Nagataki										1,200			20.3	Estimation based on kelp intake; 59 kg body weight was assumed [30].
8	Muramatsu							Unknown			1,100			18.5	Review; 59 kg body weight was assumed [30].
9	Imaeda et al.	18	45 (62.0 kg)	80	46.7 (52.2 kg)			MED	312	413		5.03	7.82		62.4 and 52.2 kg were reported for average body weights of men and women, respectively. Food items were replaced by similar ones as necessary when iodine contents were not given in FCT.
12	Fuse et al.					317	6–12	MED						6.60	Estimated by the present authors from median urinary iodine concentration of 281.6 μg/l
32	Tsukada et al.					760	21	MED			339			5.94	Based on the food composition tables, Japan, 2010; an average body weight of 57 kg was assumed for men and women in combination [30].
33	Fuse et al.			31	45.7			GM		880			16.6		Iodine-specified food intake questionnaire; 53 kg body weight was assumed for adult women [30].
								MED		931			17.6
34	Fuse et al.	129	48	93	48.8			MED	606	540		8.60	9.98		Iodine-specified food intake questionnaire; 65 and 53 kg body weights were assumed for adult men and women, respectively [30].

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