Table 3
Elements in the human body (Seeley et al.2006)
Element	O	C	H	N	Ca	P	K	S	Na	Cl	Mg	Trace element
Wt.%	65.0	18.5	9.5	3.3	1.5	1.0	0.4	0.3	0.2	0.2	0.1	<0.01
At.%	25.5	9.5	63.0	1.4	0.31	0.22	0.06	0.05	0.3	0.03	0.1	<0.01

Chen et al. Progress in Biomaterials 2012 1:2   doi:10.1186/2194-0517-1-2