Table 2.

Group design and timeline for experiment 2

	Procedures
Groups	Baseline, 1 wk	Diet Choice, 3 wk
Naïve	Ad lib access to water and chow diet	Ad lib access to water and chow diet
WChoice		Ad lib access to water and chow + HF diets
VehChoice		Ad lib access to vehicle (2% ethanol) solution and chow + HF diets
CORTChoice		Ad lib access to corticosterone (in 2% ethanol) solution and chow + HF diets

Tail blood samples were collected every 7th day from the last day of baseline. WChoice, group with access to water and both the chow and 60% HF diet; VehChoice; vehicle-choice group with access to 2% ethanol and both the chow and 60% HF diet during the 3-wk treatment period; CORTChoice; group for which water was replaced with a corticosterone solution (400 μg/ml in 2% ethanol).