Fig. 2

Body mass (A), and food intake (B) of striped hamsters that were subjected to food restriction and were refed ad libitum. Food intake was restricted by 20% of ad libitum for two weeks (FR, day 8–21), the animals were then refed ad libitum for four weeks (Re, day 22–49). Control animals (CON) were kept constantly at 23 °C throughout the experiment. During the ad libitum refeeding period, animals were intermittently exposed to 5 °C for 2 h per day (ICE-2 h/d), 12 h per day (ICE-12 h/d), or persistently exposed to 5 °C (PCE). Data are means ± SEM. ** = significant difference across the four groups (P < 0.01)