Banting was not knowledgeable enough about new developments in testing blood sugar to check for diabetes accurately, so he checked the urine, which was less reliable.

It’s said Banting and Best first injected the substance into themselves, soon noticing it caused a drop in their blood sugar. They then took their serum and injected it into dogs with diabetes.

Banting and Best isolate insulin 1922. Photo: In this lab, ... and Banting had a new idea on how to find not only the cause but a treatment for the so-called "sugar disease." ...

Several “very, very promising” biomedical trials suggest that a full cure for diabetes is in sight, 100 years after Frederick Banting and Charles Best announced the discovery of insulin.

The invention of insulin in 1922 marked a turning point in medical history. Sparked by Frederick Bantings idea and tested on ...

Banting changed his eating completely but didn't starve himself. For most of his life, Banting had followed a fairly traditional British diet heavy on bread, sugar, beer, milk, butter, and potatoes.