Table 3.

Human studies of MSG which were referenced by ICHD-III beta

First author	study type	Number of subjects	MSG administration	with (w) or without(w/o) food	Statistical analysis in the paper	statistical difference
Tarasoff L (1993) [6]	human study	71	capsule	w	performed	No difference
			3.15 g MSG/300 ml soft drink	w	performed	No difference
Yang WH (1997) [12]	human study	61(self-identified MSG sensitive)	5 g MSG/200 ml strongly citrus-tasting beverage	w/o	performed	No difference
		36(self-identified MSG sensitive)	1.25–5 g MSG/200 ml strongly citrus-tasting beverage	w/o	performed	2.5, 5 g: Significant difference
Gore M (1980) [16]	human study	55	1.5–6 g MSG/150 ml tap water	w/o	not performed	No difference (Fisher test)
Kenny RA (1972) [17]	human study	77	5 g MSG/150 ml tomato juice	w/o	not performed	No difference (Fisher test)
		22	1–5 g MSG/ 150 ml tomato juice or water	w/o	not performed	cannot analyze
Merrit JE (1990) [18]	in vitro