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. Author manuscript; available in PMC: 2016 Dec 1.
Published in final edited form as: Physiol Behav. 2015 Sep 28;152(0 0):151–160. doi: 10.1016/j.physbeh.2015.09.022

Figure 4. Junk-food induced obesity is accompanied by elevated fasted insulin levels only in obesity-prone rats.

Figure 4

A) Average weight (± SEM) of obesity-prone and obesity-resistant rats after 4 weeks of free access to standard lab chow or junk-food in the home cage. As expected, junk-food produced a significant increase in weight only in obesity-prone rats. B) Average fasted plasma insulin levels (± SEM). After 4 weeks of eating junk-food, fasted insulin levels were significantly elevated in obesity-prone versus obesity-resistant rats (* p < 0.05).