George W. Carey
George Washington Carey (1845–1924) was an American physician known for a number of 1910s ‘chemistry of life’ publications, a subject which he referred to as biochemistry, particularly his 1919 The Chemistry of Human Life, all generally using a mixture of religion, astrology, physiology, anatomy, and chemistry, themed particularly with a mineral-based theory of human disease. Carey is popular among the new-age and homeopathic circles. In the context of a person viewed as a "human molecule", Carey was the first to state that a person’s body is a “chemical formula in operation.”
Bibliography
The Biochemic System of Medicine: Comprising the Theory, Pathological Action, Therapeutical Application, Materia Medica, and Repertory of Schuessler's Twelve Tissue Remedies (1894) — Archive.org e-book
The tree of life; an expose of physical regenesis on the three-fold plane of bodily, chemical and spiritual operation (1917) — Archive.org e-book
The wonders of the human body : physical regeneration according to the laws of chemistry and physiology (1918) — Archive.org e-book