Salt Connection

There is a mitzva to bring salt to the table before a meal ( see Orach Chaim 167 : 5 ).
Why ?

Because eating is considered as a Korban which needs salt.
Tosfos Brochos 40a. Explains that since people may be waiting for each other at the table without Mitzvos we need salt protection. ???
Now may be a good time for a gem of Torah study.