You shouldn’t be extremely surprised if, in a few years, a doctor prescribes a mouth spray as part of your anti-obesity medication.
This is because a team from the University of Florida has found a simple way to introduce a previously abandoned natural hormone without bringing about the adverse effects that resulted in its abandonment in the first place.
The hormone, abbreviated as PYY, is usually produced by the gut after eating. At a certain concentration, it signals the brain’s satiety center, making the person feel less like eating. The level of PYY produced is directly related to the calorific content of the food, not the amount; a small calorie-rich serving should induce the same amounts of PYY as a large serving of calorie-poor food.