A man lived on Guinness Beer and Bananas for 10 months and was healthy after that?
I learned a man did this. and had to research it a bit more.
... then I found this 'statement' :
"You can survive for longer on a diet of cows milk and onions."
here are many statements by individuals that Guinness beer can be a cure to many things: http://www.guardian.co.uk/notesandqueries/query/0,5753,-25264,00.html