Sir Frederick Grant Banting (1891-1941) Life Description Sir Frederick Grant Banting was a Canadian physician, physiologist, and Nobel winner in 1923 for the discovery of the hormone insulin, used in treating diabetes. Early Life Banting was born November 14, 1891, on a farm near Alliston, Ontario. The death of his friend made him having the desire to be a doctor. However, his father was a devoutly religious man, and hoped that Frederick would become minister. After he graduated from high school, the conflicts with his parents begun. Hi ....