Small pouch RYGB increases energy expenditure and respiratory exchange rate (RER).

<p>These tests were conducted in DIO mice on chow diet. (A) Diurnal pattern of energy expenditure. (B) Average energy expenditure for the entire diurnal cycle and separately for day and night. The test was conducted in DIO mice at 9 weeks after RYGB or sham surgery and fed normal chow diet during testing. Note the significantly higher energy expenditure during both light and dark periods. (C) Diurnal pattern of RER. (D) Average RER for the entire diurnal cycle and separately for day and night. Note the significantly higher RER of RYGB mice for both day and night. Means ± SEM (RYGB n = 4, Sham n = 6). * p<0.05.