A Way in the Wilderness (1940)

This Passing Parade entry tells the story of Dr. Joseph Goldberger (1874-1929), a Hungarian immigrant who devoted his life to finding the cause of pellagra, a disease that killed hundreds of thousands in the southern United States. Although the medical community believed that the condition was caused by a virus, Goldberger proved that a healthy diet was the cure.

Unfortunately the movie A Way in the Wilderness is not yet available on HBO Max.