recommendationarnav sarkar its a general guideline that i think is not fully accurate for eg a person living in the north pole will require much lesser water than someone living in a hot desert similarly a man who does hard labor will require a lot more water than a man who works in an airconditioned office however you may find that beginning with the eight 8 ounce glasses of water a day is a good way to begin and see from there if you need more if you are feel thristy then you are already dehydrated and need to drink more water neelanjana singh this dictum is no longer valid as a recommendation for normal healthy individuals it is advised that water intake such that the color of urine passed is pale yellow if the color is darker one needs to drink more water read more personal health diet fitness stories on wwwhealthmeupcom