What percentage of the human body is made up of carbon?

Question

What percentage of the human body is made up of carbon?

Answer 1

About 18% by mass, and 12% by number of atoms.

It is, by mass, the second most abundant element in our bodies, after oxygen. By atom number - it is the third (after hydrogen and oxygen).

Answer 2

about 18%

carbon is naturally in our bodies, and we also get it from the carbon cycle. E.g. Breathing in CO2, and eating plants and other animals which also contain carbon. Part of it then becomes a part of our bodies.

Hope this helps.