The Warden of the jail shall furnish each prisoner daily with as much clean water as may be necessary for drink and personal cleanliness, and serve him three times a day with wholesome food, well cooked and in sufficient quantity. The Warden of the jail in counties of the first and second class shall procure at the expense of the county, all necessary foods and provisions for the support of the prisoners confined in the jail, and shall employ suitable persons to prepare and serve the food for the prisoners, or otherwise provide suitable food service.
730 ILCS 125/15