This would indicate that you need to drink just 56 oz of water daily while the rest will enter One's body by food and metabolic processes. That equals about 7 cups per day and that is about reminiscent of seven standard water glasses every day (see oz to cups conversion). https://kevalaniru.com/here-are-10-reasons-why-cartons-tetra-pak-and-gable-top-pak-are-better-than-pet-plastic/