Technically, either soup can be made with different proteins such as pork or tofu (like this tofu tom yum soup recipe), but these variations are not traditional. Tom kha is also milder than tom yum.

Tom yum soup : Most popular recipe of all Thai soups.Krua thai Restaurant About Tom Yum Soup : Tom yum soup is the most well-known recipe in the category of Thai Soups. Generally, it includes shrimps ...

Tom Yum or Tom Yam is a spicy Thai soup. It is a type of clear hot and sour soup. This vegetarian version is made with mushrooms and Thai spices.