Who is the fattest person in the US?

As of my last knowledge update in October 2023, Jon Brower Minnoch held the record for the heaviest person in U.S. history, weighing over 1,400 pounds at his peak in the 1970s. However, he passed away in 1983. Current statistics on the heaviest living individuals may vary and can change frequently, so it's best to consult recent news sources for the most up-to-date information.