How much water should you drink –

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Water is a major component of the human body. On average, about 60% of the adult body is made up of water.

A 70-kg man is made up of around 42 litres of total water, and it will be ~distributed as follows:

1. Intracellular water (within cells) -28 litres

2. Extracellular fluid – 14 litres, comprising of:

  • Interstitial fluid (lymph included), which is an aqueous medium surrounding cells – 10 litres
  • Blood plasma- 3 litres
  • Transcellular fluid (cerebrospinal fluid, ocular, pleural, peritoneal and synovial fluids) – 1 litre
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