( 2 ) The mean values of 2-hour postprandial blood glucose were as follows : intervention group ( mmol/L ) : 6.2 0.7 ( 1w ) , 5.9 0.5 ( 2w ) , 5.7 0.5 ( 3w ) , 5.8 0.6 ( 4w ) , 5.7 0.5 ( 5w ) , 5.7 0.4 ( 6w ) , 5.9 0.3 ( 7w ) , 6.0 0.4 ( 8w ) , 6.0 0.5 ( 9w ) ; control group : 6.7 0.3 ( 1w ) , 6.2 0.4 ( 2w ) , 6.2 0.5 ( 3w ) , 6.2 0.4 ( 4w ) , 6.1 0.4 ( 5w ) , 6.0 0.3 ( 6w ) , 5.8 0.4 ( 7w ) , 6.1 0.4 ( 8w ) , 6.1 0.4 ( 9w ) .