In 1970, Kelley was convicted of practicing medicine without a license, as he had diagnosed a patient with lung cancer based on a fingerstick blood test and prescribed nutritional therapy.
use a battery of blood and urine tests performed by reputable laboratories, but interpret the results in an unconventional and medically questionable fashion.
[2] "Metabolic therapy", including administration of laetrile, was promoted for cancer patients by John Richardson in the San Francisco Bay Area in the 1970s, until his arrest for violating the California Cancer Law and revocation of his license by the California Board of Medical Quality Assurance.
[4] The Memorial Sloan-Kettering Cancer Center (MSKCC) website describes metabolic therapies as "strict dietary and detoxification regimens touted to prevent and treat cancer and degenerative diseases", a term and definition different from that used for metabolic typing in this Wikipedia article.
"[5] William Donald Kelley, in his book [citation needed], classified the Metabolism of an individual into three categories.