Tuesday 18 January 2022

What are we made of?

 Here are the top 6 elements in the human body, by weight:

Oxygen 65%
Carbon 18%
Hydrogen 10%
Nitrogen 3%
Calcium 2%
Phosphorous 1.1%

At less than 0.35% are potassium, sulphur, sodium, chlorine.

Traces of elements: magnesium, iron, manganese, copper,iodine, cobalt, zinc.

From: The Chemistry of Life ~ Steven Rose

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