on empty stomach

Indian children died after 'eating lychees on empty stomach'

“On nights that people don’t give me food, I sleep on empty stomach,” said the shoeless boy.

Medicine on empty stomach cited as factor in Huggins' fall: West Virginia officials said Bob Huggins' rib-breaking fall occurred because medication taken on an empty stomach left him lightheaded.

Consequently I trudged best foot forward, although on empty stomach and with empty pockets; but glad to be at large, and exchanging good-natured greetings with the travelers encountered.