Naples traditionally in a wood-burning oven, the ingredients of Neapolitan pizza have been strictly regulated by law since 2004, and must include wheat flour type "00" with the addition of flour type "0" yeast, natural mineral water, peeled tomatoes or fresh cherry tomatoes, mozzarella cheese, sea salt and extra virgin olive oil. Spaghetti is also associated with the city and is commonly eaten with the sauce "ragù": a popular Neapolitan folkloric symbol is the comic figure Pulcinella eating a plate of spaghetti. Other dishes popular in Naples include "Parmigiana di melanzane", "spaghetti alle vongole" and "casatiello". As a coastal city, Naples
Soul food resulted in drastically leaner pork, in the 21st and late 20th centuries. Some cooks have even adapted recipes to include vegetarian alternatives to traditional ingredients, including tofu and soy-based analogues. Critics and traditionalists have argued that attempts to make soul food healthier, also make it less tasty, as well as less culturally/ethnically authentic. Several of the ingredients included in soul food recipes have pronounced health benefits. Collard and other greens are rich sources of several vitamins (including vitamin A, B, folic acid or vitamin B, vitamin K, and C), minerals (manganese, iron, and calcium), fiber, and small amounts of omega-3