Parsley: Although considered bad etiquette, eating the parsley on your plate provided as garnish is actually a very beneficial thing to do. Its unique nutritional properties include being a good source of volatile oils, which in animal studies have helped prevent tumor formation and protect against carcinogens, folic acid (a B vitamin), and vitamins A, K, and C, which reduces risk for many diseases. If you do not prefer the flavor, try a different variety of parsley (there are several), or combine it with other herbs in rubs and sauces. It is delicious in the wholesome Middle Eastern classic tabouli, and in pesto.