Chemistry can do some wild tricks with food, letting you taste in a new way. If you stick your foot in a bag filled with garlic cloves and rub them on the bottom of your foot, you will actually be able to taste garlic. It’s not because you have secret garlic taste buds on your feet. It’s because the molecules responsible for garlic’s smell (allicin) can penetrate your skin, get into your blood and travel to your mouth and nose, where you suddenly start to sense the taste of garlic.,

Source: ACS