Daniel 1:11-13
1:11 Daniel then spoke to the warden whom the overseer of the court officials had appointed over Daniel, Hananiah, Mishael, and Azariah:
1:12 “Please test your servants for ten days by providing us with some vegetables to eat and water to drink.
1:13 Then compare our appearance with that of the young men who are eating the royal delicacies; deal with us in light of what you see.”