How would you cut down on roaches food supply and water supply?

To cut down on a roach's food supply, keep your kitchen and dining areas clean by promptly cleaning up spills, crumbs, and food residue, and storing food in airtight containers. For their water supply, fix any leaks and ensure that sinks and countertops are dry, as roaches are attracted to moisture. Additionally, remove any standing water and regularly check for damp areas in your home. Implementing these measures will create an inhospitable environment for roaches.