More than 93 per cent of the human body consists of three chemical elements – oxygen (65%), carbon (18.5%) and hydrogen (10%). Nitrogen (3%), calcium (1.5%), and phosphorous (1%) are also present in significant amounts. At least 54 chemical elements feature in total, but most of these are tiny traces.
Oxygen 65%
About two-thirds of the body is oxygen. Most of the oxygen is bonded with hydrogen to form H2O – the chemical formula for water.
Carbon 18.5%
Nearly one-fifth of the body is carbon, the same element that coal, diamond, and the lead of pencils are made from.
Hydrogen 10%
The most common element in the universe, hydrogen has the tiniest atoms, and is mostly bonded with carbon or oxygen in the body.
Others in Human Body- 6.5%
Other elements less than 1.0%
Iron 0.006%
Sodium 0.2%
Potassium 0.4%
Phosphorus 0.4%
Calcium 1.5%
Nitrogen 3.2%
Precious elements
The human body contains a tiny amount of gold – less than the weight of a grain of sand. Most of the body’s gold is in the blood.
Picture Credit : Google