Scottish biochemists

John James Rickard Macleod, (6 September 1876 – 16 March 1935), was a Scottish biochemist and physiologist. He devoted his career to diverse topics in physiology and biochemistry, but was chiefly interested in carbohydrate metabolism. He is noted for his role in the discovery and isolation of insulin during his tenure as a lecturer at the University of Toronto, for which he and Frederick Banting received the 1923 Nobel prize in Physiology or Medicine.

Anna MacGillivray Macleod (15 May 1917 – 13 August 2004) was a Scottish biochemist and academic, an authority on brewing and distilling. She was a professor at Heriot-Watt University in Edinburgh. She was the world's first female Professor of Brewing and Biochemistry.