The regular recommendation of many health professionals are to drink 8-10 glasses of water daily however, this is dependent on the activity the person is engaging in and the climate the person is engrossed to. For example, when an athlete has ran possibly n kms. it might be a necessity for a person to drink water since the body processed much faster than normal.
You only have the questions.... there’s no video or picture to look from.
The nutrient that is not digested but keeps the digestive system healthy is C. Vitamins :)
Poor health and decreased appetite