Why Water Is The Most Essential Nutrient
Different Stages of Water
FACTS ABOUT INTERNAL WATER SUPPLY
The human body is made up of 55% to 75% water. Blood, digestive juices, urine and sweat are all made of and require water. Without food, the human body can last for weeks. But without water, the human body may only last up to 3 days. A mature adult can lose 2.5 to 3 liters of water a day. It is recommended that you drink up to 2 liters of water a day.