The low-calorie , low-carbohydrate soy-containing diet could reduce alanine aminotransferase ( -15.2 12.1 versus -6.8 4.6 in the low-calorie , low-carbohydrate diet , and -6.4 4.4 IU/L in the low-calorie diet ; P = 0.02 ) and serum fibrinogen levels ( -49.1 60.1 versus -12.9 8.1 and -17.4 8.4 g/L , respectively ; P = 0.01 ) .