Health and Medical History of PresidentWilliam Howard Taft: At 335 Pounds
"Not much can be said about Taft's health without saying a great deal about his size" 1a. Taft was 5 feet 11.5 inches tall 2. He weighed 243 pounds when he graduated from college 3a and, by all accounts, carried it well. By age 48, when he had been Secretary of War for two years, he weighed 320 pounds 3b. Under the guidance of English physician Dr. N. E. Yorke-Davies, he lost 70 pounds over the next year and a half 3b. But two years after that, he was once again over 300 pounds MORE. He weighed 335-340 pounds when he left the White House [see photo BELOW ]. He then lost weight rapidly, dropping to 270 in a year and a half. The summer before he died, he weighed 244 pounds, just one pound more than his college weight. Details and graphs are available on the Apneos web site and in reference 4.
Taft was big almost from birth. It's clear, however, that he had an enormous appetite. MORE
Taft's size impressed some people, but often made him the butt of jokes MORE. Note: Judged solely by body mass index, a 5-foot 11-inch person weighing more than 290 pounds is severely obese.
The photograph below shows Taft at his peak weight: 335-340 pounds.
The photo is held by the Library of Congress and is available on their web site in glorious 10MB resolution. Their title for the photo is: "President-elect Wilson and President Taft standing side by side, laughing, at the White House, prior to Wilson's inauguration ceremonies, March 4, 1913." Wilson had not yet taken the oath of office, so he was still the President-elect.
(The photographer snapped the picture just after Wilson had made a comment about a young woman nearby.)