May improve blood sugar control

Black pepper may assist improve blood sugar metabolism, according to research. In one study, rats fed a black pepper extract experienced a lower jump in blood sugar levels after consuming glucose than rats in the control group.

Furthermore, 86 overweight adults who took a supplement containing piperine and other chemicals for 8 weeks saw significant improvements in insulin sensitivity, which is a measure of how well the hormone insulin removes glucose from the bloodstream. However, because this study used a combination of numerous active plant chemicals, it's uncertain if the same effects would occur with black pepper alone.