Medical mavericks - the history of self-experimentation. Part 3, Diet and disease.

The third in a four-part series, presented by Michael Mosley, looking at the history of medical self-experimentation. This part features people in medical history who have experimented with the connection between food and health. Beginning with William Stark in 1769 who tried out many combinations of foods in order to discover which were healthier than others and ended up with scurvy, it was a century later with Joseph Goldberger's research into disease in the deep South of America that it was discovered that dietary insufficiency could be a cause of disease. In 1961 Victor Herbert put himself on a junk food diet and discovered the importance of folic acid in our diet and Hugh Sinclair discovered that fatty acids in Eskimo diets helped to prevent heart attacks. Finally we hear from Luigi Fontana and Dave Fisher who are both calorie restriction practitioners.