Frederick G. Banting was a Canadian medical scientist and physician, best known for his discovery of insulin. Born on November 14, 1891, in Alliston, Ontario, he studied medicine at the University of Toronto. His groundbreaking work in the early 1920s transformed the treatment of diabetes, a condition that was often fatal before insulin became available. In 1923, Banting was awarded the Nobel Prize in Physiology or Medicine alongside John Macleod for their contributions to the understanding of insulin. Banting's research not only saved countless lives but also paved the way for further advancements in diabetes treatment and management. He passed away in 1941, leaving a lasting legacy in medicine.