Decoding Garlic’s Pizzazz: Extract stimulates taste, temperature receptors

Despite garlic’s widespread role in cooking—and in vampire tales—scientists had long failed to explain the pungent plant’s burning taste. Now, a study of gustatory physiology suggests that raw garlic’s characteristic spiciness stems from its capacity to open channels on nerve cells that react to both tastes and noxious temperatures.

BURNING ISSUE. Raw garlic’s prickly taste derives from allicin, a chemical that may also have health benefits.