'You alarm me!' said the King. 'I feel faint—Give me a ham sandwich!'
On which the Messenger, to Alice's great amusement, opened a bag that hung round his neck, and handed a sandwich to the King, who devoured it greedily.
'Another sandwich!' said the King.
'There's nothing but hay left now,' the Messenger said, peeping into the bag.
'Hay, then,' the King murmured in a faint whisper.
Alice was glad to see that it revived him a good deal. 'There's nothing like eating hay when you're faint,' he remarked to her, as he munched away.

Through the Looking Glass (And What Alice Found There), Chapter 7 - The Lion and the Unicorn