Frederick Banting realized that this procedure would destroy the trypsin-secreting cells but not the insulin. Once the trypsin-secreting cells had died, insulin could be extracted from the islets of Langerhans. Banting discussed this approach with J. J. R. Macleod, Professor of Physiology at the University of Toronto. Macleod provided experimental facilities and the assistance of one of his students, Charles Best. Banting and Best, with the assistance of biochemist James Collip, began the production of insulin by this means. As the experiments proceeded, the required quantities could no longer be obtained by performing surgery on living dogs. In November 1921, Banting hit
William Banting is still available on-line. The popularity of the pamphlet mentioned above was such that the questions "Do you bant?" or "Are you banting?", still occasionally in use today, refer to his method, and sometimes even to dieting in general. In Sweden "banta" is still the main verb for "being on a diet". Scientist Tim Noakes popularised Banting in South Africa when he named his high-fat, low-carbohydrate diet after Banting. Gary Taubes' study of carbohydrates, "Good Calories, Bad Calories", begins with a prologue entitled "A brief history of Banting" and discusses Banting at some length. Discussions of low-carbohydrate diets often begin