The basic recipe for modern ketchup is tomatoes, vinegar, sugar, salt, allspice, cloves and cinnamon. Onions, celery and other spices are frequent additions. Most of the lycopene in our diet comes from tomatoes and evidence implies that it is also a powerful antioxidant with potentially positive health benefits. The word Ketchup is thought to derive from the Chinese word ke-tsiap, (which actually means pickled fish). Ketchup in the 1800s referred to any sauce made with vinegar.