Peppermint is now familiar to most people as the ubiquitous taste of toothpaste, even moreso than candy, food, or drink. If we cue university student volunteer

Peppermint is now familiar to most people as the ubiquitous taste of toothpaste, even moreso than candy, food, or drink. If we cue university student volunteers on Toothpaste -> Selfcare -> Weightloss I wonder what happens. I also wonder what placebo was used, and to what effect. The typical flavoring agent to make something peppermint-flavored is peppermint essential oil (or cornmint, spearmint, etc), and I don't know how you'd make it convincing without also including a bunch of hypothetically active compounds. The paper lists Schweppes Peppermint Cordial, without mint on the ingredients label. "Peppermint cordial" used as flavoring was historically 10% peppermint oil, and today the Schweppes product they cite just lists "flavourings" as ingredient.