Mean leptin levels (ng/ml) in 10 normal weight (solid line) versus 13 severely obese (broken line) participants. The leptin response postprandially was significantly different between groups (p < 0.001), and averaged over time. Also, the severely obese participants had significantly higher *(p < 0.001) leptin levels than the normal weight participants at all measured time points.
Carlson et al. Nutrition & Metabolism 2009 6:32 doi:10.1186/1743-7075-6-32