William Taft
Despite his desire to be remembered for being a wise man and his futile attempts to lose a lot of weight, William Taft is still regarded today as the heaviest president in the history of the US.
It’s said that Taft’s colossal appetite made him clinically obese and that he weighed more than 300 pounds when he left the office. Of course, his condition brought about other health issues, such as high blood pressure and heart problems, which eventually led to his demise.