Well the first one is drinking straight water 8 ounces of water 8 times a day and the second statement is you need to drink that many ounces of fluid regardless

Well the first one is drinking straight water 8 ounces of water 8 times a day and the second statement is you need to drink that many ounces of fluid regardless of source. That includes the foods you eat and any liquids you drink. I think even the diuretics are included in that second figure.