Element Abundances in the Human Body

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Element

( Based on a 70 kg "reference man" )

Click button to see citations

Oxygen

43 kg

Carbon

16 kg

Hydrogen

7 kg

Nitrogen

1.8 kg

Calcium

1.00 kg

Phosphorus

780 g

Sulfur

140 g

Potassium

140 g

Sodium

100 g

Chlorine

95 g

Magnesium

19 g

Iron

4.2 g

Fluorine

2.6 g

Zinc

2.3 g

Silicon

1 g

Rubidium

680 mg

Strontium

320 mg

Bromine

260 mg

Lead

120 mg

Copper

72 mg

Aluminum

60 mg

Cadmium

50 mg

Cerium

40 mg

Barium

22 mg

Titanium

20 mg

Tin

20 mg

Boron

18 mg

Iodine

12 mg to 20 mg

Nickel

15 mg

Selenium

15 mg

Chromium

14 mg

Manganese

12 mg

Lithium

7 mg

Arsenic

7 mg

Cesium

6 mg

Mercury

6 mg

Germanium

5 mg

Molybdenum

5 mg

Cobalt

3 mg

Silver

2 mg

Antimony

2 mg

Niobium

1.5 mg

Zirconium

1 mg

Lanthanum

0.8 mg

Gallium

<0.7 mg

Tellurium

0.7 mg

Yttrium

0.6 mg

Thallium

0.5 mg

Bismuth

<0.5 mg

Scandium

0.2 mg

Gold

0.2 mg

Vanadium

0.11 mg

Thorium

0.1 mg

Uranium

0.1 mg

Beryllium

0.036 mg

Tungsten

0.02 mg

Radium

31×10-9 mg

Element

Abundances by Element Name in the Human Body

( Based on a 70 kg "reference man" )

Click button to see citations

Aluminum

60 mg

Antimony

2 mg

Arsenic

7 mg

Barium

22 mg

Beryllium

0.036 mg

Bismuth

<0.5 mg

Boron

18 mg

Bromine

260 mg

Cadmium

50 mg

Calcium

1.00 kg

Carbon

16 kg

Cerium

40 mg

Cesium

6 mg

Chlorine

95 g

Chromium

14 mg

Cobalt

3 mg

Copper

72 mg

Fluorine

2.6 g

Gallium

<0.7 mg

Germanium

5 mg

Gold

0.2 mg

Hydrogen

7 kg

Iodine

12 mg to 20 mg

Iron

4.2 g

Lanthanum

0.8 mg

Lead

120 mg

Lithium

7 mg

Magnesium

19 g

Manganese

12 mg

Mercury

6 mg

Molybdenum

5 mg

Nickel

15 mg

Niobium

1.5 mg

Nitrogen

1.8 kg

Oxygen

43 kg

Phosphorus

780 g

Potassium

140 g

Radium

31×10-9 mg

Rubidium

680 mg

Scandium

0.2 mg

Selenium

15 mg

Silicon

1 g

Silver

2 mg

Sodium

100 g

Strontium

320 mg

Sulfur

140 g

Tellurium

0.7 mg

Thallium

0.5 mg

Thorium

0.1 mg

Tin

20 mg

Titanium

20 mg

Tungsten

0.02 mg

Uranium

0.1 mg

Vanadium

0.11 mg

Yttrium

0.6 mg

Zinc

2.3 g

Zirconium

1 mg

References (Click the next to a value above to see complete citation information for that entry)

Bowen, H. J. M. Environmental Chemistry of the Elements. London: Academic Press, Inc., 1979.

Emsley, John. The Elements, 3rd edition. Oxford: Oxford University Press, 1998.

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