Near the end of his life, Adolf Hitler (1889–1945) followed a vegetarian diet. It is not clear when or why he adopted it, since some accounts of his dietary habits prior to the Second World War indicate that he consumed meat as late as 1937. In 1938, Hitler's doctors put him on a meat-free diet, and his public image as a vegetarian was fostered; from 1942, he self-identified as a vegetarian.
https://en.m.wikipedia.org/wiki/Adolf_Hitler_and_vegetarianism