Garum dysentery, and ulcers, and to ease chronic diarrhea and treat constipation. Garum was even used as an ingredient in cosmetics and for removal of unwanted hair and freckles. The biological anthropologist Piers Mitchell suggests that garum may have helped spread fish tapeworms across Europe. Garum is believed to be the ancestor of the fermented anchovy sauce "colatura di alici", still produced in Campania, Italy. Worcestershire is a savory sauce based upon fermented anchovies and other ingredients. Ketchup, originally a savory fish sauce that did not contain either sugar or tomatoes, shared its origins, culinary functions and popularity with garum. Garum
Fish sauce at the table as a condiment, for instance in noodle soups. Nearly every Thai meal is served with "phrik nam pla" as a condiment: a mixture of fish sauce, lime juice, and chopped bird's eye chilies. Sliced garlic and lemon juice are often added to this sauce. Historically, there were two types of fish sauce made in Thailand: that made with a fresh-water fish, "pla soi", and sauce made from a salt-water fish, "pla kratak". Either fish is fermented for at least eight months, three parts fish to two parts salt. The resulting mash is filtered. This yields the best