Table 1.

Post-prandial responses in circulating levels of amino acids (expressed as AUC_T0−T120 [×10³ µM × min]) after ingestion of a beverage containing whey proteins or maltodextrins in obese subjects (at T0).

Amino Acid	Maltodextrins	Whey Proteins	p
Alanine	41.0 ± 5.9	47.5 ± 6.0	0.015
Arginine	13.6 ± 2.1	15.9 ± 2.4	0.022
Asparagine	5.7 ± 1.1	8.9 ± 1.8	<0.001
Aspartate	3.2 ± 0.3	3.6 ± 0.6	0.096
Citrulline	1.9 ± 0.6	2.e9 ± 0.6	<0.001
Glutamate	15.5 ± 3.3	18.2 ± 6.7	0.144
Glutamine	42.7 ± 7.1	50.5 ± 8.1	<0.001
Glycine	22.3 ± 4.7	22.8 ± 5.9	0.623
Histidine	8.0 ± 0.9	8.9 ± 1.3	0.004
Hydroxyproline	0.6 ± 0.2	2.2 ± 1.5	0.022
Isoleucine	8.1 ± 2.0	20.2 ± 2.6	<0.001
Leucine	13.8 ± 3.5	33.5 ± 4.6	<0.001
Lysine	22.0 ± 3.2	36.6 ± 4.9	<0.001
Methionine	2.2 ± 0.4	4.0 ± 0.5	<0.001
Ornithine	6.3 ± 1.5	8.4 ± 1.4	<0.001
Phenylalanine	7.4 ± 1.3	9.6 ± 1.1	<0.001
Proline	18.7 ± 4.1	30.4 ± 5.0	<0.001
Serine	15.5 ± 2.1	19.1 ± 3.2	0.002
Taurine	9.0 ± 1.6	9.5 ± 2.0	0.556
Threonine	14.0 ± 3.8	22.0 ± 4.6	<0.001
Tyrosine	6.5 ± 1.4	10.8 ± 2.0	<0.001
Valine	26.3 ± 3.4	42.9 ± 4.8	<0.001