Table 1.
Nutritional compositions of white, brown rice, barley and buckwheat (contents/100 g)

	Carbohydrate (g)	Dietary fiber (g)	Protein (g)	Lipid (g)	Vitamin B1 (mg)	Vitamin B2 (mg)	Vitamin B3 (mg)	Vitamin E (mg)	References
White rice	49.6	0.74	4.1	0.205	0.176	0.021	2.05	0.462	Babu et al., 2009
Brown rice	49.7	3.32	4.88	1.17	0.223	0.039	2.73	1.4	Babu et al., 2009
Barley	79.0	12	9	1	0.3	0.1	1.2	0.6	Jung et al., 1987; Choe & Youn, 2005
Buckwheat	70.1	3.33	12	2.9	0.23	0.07	1.08	0.29	Lee et al., 1991; Cho et al., 2016