The most abundant element in the human body is oxygen.
The elemental content of the human body is 65% oxygen, 18% carbon, 10% hydrogen, 3% nitrogen, 1.5% calcium, 1% phosphorus, 0.35% potassium, 0.25% sulphur, 0.15% sodium, 0.15% chlorine and 0.05% magnesium.
The most important components of the human body are water, fat, protein, etc., while the element oxygen is present in the substances that make up the organism, such as protein, water, lipids, etc. Oxygen is present. Therefore, elemental oxygen has the highest content in the human body.
In addition to this, other substances such as proteins, inorganic salts, etc., basically have elemental oxygen involved in their composition. Therefore, the proportion of elemental oxygen in the human body is higher than that of other elements.
Oxygen is an indispensable element in the human body and plays an important role in human life activities and health.