Iron (II) di-D-gluconate (more colloquially known as Ferrous gluconate[1]) is a black colored dye and often used as an iron supplement. Companies also market it under the names Fergon, Ferralet, and Simron.[2] It is also present in the combination supplement Dianazene, a vitamin mixture created by L. Ron Hubbard and used in the religion Scientology. Dianazene was the name given by L. Ron Hubbard to a vitamin supplement containing ferrous gluconate, Vitamin C, and various B vitamins, including especially large doses of niacin. ... An official Church of Scientology portrait of L. Ron Hubbard, circa 1970 Lafayette Ronald Hubbard (March 13, 1911 â January 24, 1986), better known as L. Ron Hubbard, was a prolific American author and founder of the controversial Church of Scientology. ... Scientology is a system of beliefs, teachings, practices, and rituals that originated as philosophy in 1952 by author L. Ron Hubbard, and characterized by the Church of Scientology in 1953 as an applied religious philosophy. Hubbard defined the word Scientology to mean a study of knowledge. ...
Ferrousgluconate is used as a dietary supplement, and to prevent and to treat iron deficiencies and iron deficiency anemia.
Symptoms of a ferrousgluconate overdose include decreased energy; nausea; vomiting; abdominal pain; tarry stools; a weak, rapid pulse; fever; coma; seizures; and death.