Most of the chemical reactions that happen in our cells need water in order to take place. We also need water so that our blood can carry nutrients around the body and get rid of waste.
Source: Water and drinks @ NHS Choices
- Why Your Body Needs Water @ For Dummies
Excerpt: You must have water in your diet. It is brimming with minerals and electrolytes, and you can’t live without it. Water is a solvent. It dissolves other substances and carries nutrients and other material (such as blood cells) around the body, making it possible for every organ to do its job.