The Discovery of Insulin and its Global Impact
- OldPen

- Mar 28
- 2 min read
The discovery of insulin in 1921 by Canadian scientists Frederick Banting and Charles Best is one of the most significant medical breakthroughs in history. This discovery transformed the treatment of diabetes, a disease that had previously been fatal for many individuals, into a manageable condition.
Banting, a surgeon, and Best, a medical student, were working at the University of Toronto when they first isolated insulin from the pancreas of dogs. The pair, along with their colleague James Collip, demonstrated that insulin could regulate blood sugar levels in diabetic dogs. This discovery led to clinical trials with human patients, where insulin proved to be effective in managing diabetes.
The team patented their discovery and sold the rights to the University of Toronto for just $1, ensuring that insulin would be widely available to those in need. The impact of insulin was immediate and profound. It saved countless lives and allowed people with diabetes to live longer and healthier lives. Prior to insulin, individuals diagnosed with diabetes had a limited life expectancy, with treatments such as diet restrictions offering little relief.
The discovery of insulin is a testament to the power of Canadian scientific research and innovation. It not only changed the lives of people with diabetes but also marked Canada as a global leader in medical research. Banting and Best received numerous accolades for their work, including the Nobel Prize in Physiology or Medicine in 1923, with Banting becoming one of the youngest Nobel laureates at the time.
Today, insulin continues to be a crucial component of diabetes management, and the work of Banting and Best remains an enduring symbol of Canadian contributions to the field of medicine.









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