Fo is a Vietnamese soup with rice noodles. It added beef (soup fo bo ) or chicken (soup fo ga), sometimes pieces of fried fish or fish balls (soup fo ka). The soup is served with basil, mint, lime, bean sprouts mung or other spices. Fo soup is the young dish. The colonialists introduced Vietnamese chefs with meat broth in the early twentieth century. Then Vietnamese chefs added chilli, fish sauce, spices and rice noodles. From the North Vietnamese dish spread throughout the country. However, this soup is considered from Hanoi.