Adolf Hitler was a man who lived a long time ago and he became a leader of a country called Germany. He believed in some really bad ideas and treated many people very unfairly, which is why he is remembered as a very bad person.
Vegetarianism is when someone chooses not to eat meat, like chicken, beef or pork. Some people do this because they think it's better for the environment or for their health. Adolf Hitler was one of these people. He gave up eating meat for a number of reasons, including concerns over animal welfare, his own health, and his personal beliefs on the way people should live.
Hitler was not only a vegetarian, but he also made sure that other people around him did not eat meat as well. He believed that meat made people violent and aggressive, and even banned meat from being served at official events.
However, it's important to remember that Hitler's vegetarianism did not make him a good person. Despite his dietary choices, he was responsible for many terrible things and his decisions caused a lot of harm to many people. Just because someone chooses to eat a certain way, it doesn't automatically make them a good or bad person- it's their actions that define who they are.