French botanist (1813–1901).
Gaspard Adolphe Chatin (30 November 1813, Tullins – 13 January 1901) was a French physician, mycologist and medical botanist who was born in Tullins Isère, and died in Les Essarts-le-Roi. He was the first to prove that goiter was related to iodine deficiency. Chatin was born in the mountain region of Isère where goiter was common. He apprenticed at the age of 17 to a pharmacist who recognized his talent and sent him to Paris. In Paris, the pharmacist Briant was struck by his intelligence and encouraged him to study. He studied at the Faculté de Médecine in Paris and received his doctorate in M