Table 2.

Meal patterns (24 h and during dark and light phase) of DIO rats on WD and switched to HPD (WD-HPD) 6 wk compared with normal rats on ND

	24 h			Dark Phase			Light Phase
	Normal rats	DIO rats		Normal rats	DIO rats		Normal rats	DIO rats
	ND	WD	WD-HPD	ND	WD	WD-HPD	ND	WD	WD-HPD
Food intake, kcal	62.5 ± 2.5	60.3 ± 4.2	60.1 ± 1.4	51.8 ± 3.7	54.2 ± 2.9	50.9 ± 2.9	10.4 ± 2.1	6.3 ± 3.4	9.3 ± 2.8
Bouts, number	99.6 ± 5.2	47.3 ± 5.4*	68.1 ± 5.9*#	80.4 ± 6.0	42.8 ± 5.0*	55.0 ± 5.0*	19.3 ± 2.3	4.5 ± 1.4*	13.1 ± 2.1#
Meal frequency, number	8.0 ± 0.5	4.8 ± 0.5*	7.5 ± 0.6#	6.1 ± 0.6	4.0 ± 0.3*	6.1 ± 0.5#	1.9 ± 0.3	0.8 ± 0.3*	1.4 ± 0.4
Meal size, kcal/meal	8.0 ± 0.4	13.2 ± 0.8*	8.4 ± 0.7#	8.7 ± 0.6	13.8 ± 0.9*	8.6 ± 0.8#	6.2 ± 1.0	3.6 ± 1.7*	5.9 ± 1.2#
Meal rate, kcal/min	0.8 ± 0.1	0.8 ± 0.1	0.3 ± 0.1#	0.4 ± 0.0	0.8 ± 0.1*	0.3 ± 0.1#	0.4 ± 0.1	1.2 ± 0.3*	0.5 ± 0.1#
Meal duration, min	11.1 ± 0.7	17.3 ± 2.6	26.4 ± 2.6*	21.8 ± 2.2	19.3 ± 2.6	28.5 ± 3.0#	17.5 ± 2.7	5.5 ± 1.1*	17.3 ± 2.8#
Total meal time, min	160.5 ± 10.3	82.5 ± 13.3*	195.4 ± 20.1#	128.4 ± 10.5	77.9 ± 12.5*	168.8 ± 15.7#	32.1 ± 6.7	4.5 ± 2.3	26.5 ± 10.1
Latency to 1st meal, min				25.6 ± 7.7	21.6 ± 5.4	9.6 ± 4.3
Intermeal interval, min	179.2 ± 11.4	221.4 ± 33.4	177.9 ± 20.6	92.5 ± 6.7	156.8 ± 11.3*	85.1 ± 6.6#
Satiety ratio, min/kcal	23.0 ± 2.0	17.6 ± 2.8	21.5 ± 3.3	10.6 ± 0.5	11.4 ± 0.6	10.0 ± 0.4

Data are means ± SE. One-way ANOVA was performed for each indicated time period, n = 8/group. DIO, diet-induced obesity; ND, normal diet; WD, Western diet; HPD, high-protein diet.

^*P < 0.05 vs. ND.

^#P < 0.05 vs. WD.