Table 5.

Effect of Met and GAA supplementation on plasma AA concentrations from blood collected on day 10

	0 Met			6 g/d Met
	GAA, g/d							P-value 1
AA, µM	0	7.5	15	0	7.5	15	SEM	Met	G-L	G-Q	Met × G-L	Met × G-Q
n	7	7	7	7	6	6
Homocysteine	11.6	13.7	12.7	9.9	9.9	10.0	1.22	<0.01	0.26	0.10	0.36	0.10
Methionine	12.7	12.5	14.4	23.8	22.6	25.2	1.72	<0.01	0.21	0.19	0.93	0.67
Cysteine	92.8	98.3	95.8	109.7	113.5	110.4	4.82	<0.01	0.40	0.06	0.59	0.89
Ornithine	77.6	62.4	73.0	54.3	59.8	59.9	6.37	0.03	0.93	0.28	0.35	0.11
Tryptophan	34.0	30.7	35.3	28.3	30.0	30.3	2.38	0.06	0.48	0.43	0.87	0.25
Tyrosine	45.1	47.7	51.2	37.7	45.1	43.4	4.91	0.09	0.16	0.57	0.96	0.49
Threonine	120.8	129.7	112.8	96.0	124.2	128.3	16.20	0.54	0.14	0.09	0.02	0.95
Leucine	155.6	126.0	144.6	106.9	106.8	110.2	10.3	<0.01	0.60	0.05	0.33	0.09
Isoleucine	119.7	107.4	115.5	94.9	96.6	98.5	5.70	<0.01	0.95	0.22	0.41	0.22
Valine	332.4	290.6	308.8	241.1	257.2	254.8	19.3	<0.01	0.67	0.32	0.12	0.07
Lysine	120.0	102.9	123.5	89.3	95.2	106.8	8.46	0.02	0.23	0.16	0.42	0.29
Phenylalanine	61.4	56.0	60.1	58.6	58.3	62.1	5.73	0.90	0.82	0.44	0.63	0.76
Glutamic acid	139.9	155.0	143.4	156.4	149.4	160.6	17.33	0.58	0.71	0.81	0.97	0.22
Glutamine	201.7	196.0	232.4	191.0	224.6	202.8	21.61	0.75	0.17	0.80	0.53	0.08
Aspartic acid	4.9	5.7	5.8	5.7	6.3	6.2	0.53	0.33	0.10	0.35	0.54	0.94
Asparagine	29.1	31.5	32.2	28.5	33.0	32.0	2.42	0.90	0.12	0.32	0.91	0.60
Proline	57.7	56.8	59.7	53.5	57.7	55.8	2.55	0.27	0.42	0.80	0.94	0.29
Alanine	193.7	218.8	207.1	199.1	225.1	219.0	11.64	0.41	0.16	0.10	0.78	0.90
Serine	174.0	149.2	169.6	68.9	138.3	89.7	17.09	<0.01	0.60	0.19	0.42	0.01
Glycine	229.5	243.4	223.5	178.8	231.0	193.7	23.92	0.06	0.81	0.07	0.58	0.40

¹G-L, linear effect of GAA; G-Q, quadratic effect of GAA.