Effects of tryptophan-rich breakfast and light exposure during the daytime on melatonin secretion at night

Table 2 Energy and nutrient intake at breakfast, lunch, and supper

Energy and nutrients		Breakfast		Lunch	Supper
		TRP-Poor	TRP-Rich
Energy*¹	(kcal)	378	579	810	723
Tryptophan (TRP)	(mg)	55	476	285	318
Protein	(g)	5.6	36.2	25.6	27.4
Lipid	(g)	7.7	17.5	23.1	16.4
Carbohydrate	(g)	71.7	65.2	121.6	113.9
Sodium	(mg)	813	1118	1742	941
Vitamin B6	(mg)	0.22	0.61	0.49	0.7
Isoleucin	(mg)	162	1649	1021	1084
Leucin	(mg)	311	2855	1826	1964
Phenylalanine	(mg)	200	1731	1028	1096
Tyrosine	(mg)	149	1388	774	898
Valine	(mg)	223	1936	1177	1298
LNAA*²	(mg)	1045	9559	5826	6340
TRP/LNAA	(mol/mol)	0.036	0.034	0.033	0.034

*¹All energy and nutrient intakes of the controlled food in the experiment were calculated according to the Standard Tables of Food Composition in Japan, and the coefficients for each food constituent were different from Atwater’s coefficients.
*²LNAA: Large, neutral amino acids (isoleucin, leucin, phenylalanine, tyrosine, and valine).

ISSN: 1880-6805