Peppermint represses appetite and has an impact on your sense of taste by changing the food aroma.
When you are finished with peppermint try to eat something and you will find that taste is slightly different than you are used to. Try to rinse your mouth with menthol mouthwash during the holidays and you will eat less for sure.
4. Sparkling water
Drink 2 glasses of sparkling water before dinner and you will not gain weight. At least for that meal.