• Top 10 Most Abundant Elements in Human Body (by mass)
    Oxygen 65.0%
    Carbon 18.5%
    Hydrogen 9.5%
    Nitrogen 3.2%
    Calcium 1.5%
    Phosphorus 1.0%
    Potassium 0.4%
    Sulfur 0.3%
    Sodium 0.2%
    Chlorine 0.2%