Ex-9 had no overall effect on hunger (A) or fullness (B) ratings throughout the experimental protocol. Hunger ratings tended to be lower after the standardized breakfast whereas fullness ratings were significantly lower after the buffet meal during Ex-9 treatment. Buffet intake did not differ between treatment days (C). All time points are 30 minutes apart except for between Post-Breakfast and Pre-Buffet (indicated by hash marks) where actual time elapsed was ~60–90 min. and was matched within subjects. Ex-9, Exendin-[9–39], VAS, visual analog scale, *P<0.05, #P=0.05.