What is the chemical composition of the human body?

The body of animals, including humans, has a chemical composition that includes approximately:

• Oxygen 65%
• Carbon 18%
• Hydrogen 10%
• Nitrogen 3%
• Calcium 1.5%
• Phosphorus 1.2%
• Potassium 0.2%
• Sulfur 0.2%
• Chlorine 0.2%
• Sodium 0.1%
• Magnesium 0.05%
• Traces of Iron, Cobalt, Copper, Zinc, Iodine, Selenium and Fluorine (*)

All these elements are the most common in the earth's crust and the soil that generates the nutrients that allow human beings to stay alive.

It has been popularly said that the components of a human body could be easily bought in a store and the total could be around €160

There is, however, a percentage of elements that do not fall into this category, such as DNA.