President Donald Trump, who delights in confounding health experts with his junk food cravings and disinclination to exercise, is "in very good health," his doctor declared following an annual medical checkup.

"I am happy to announce the president of the United States is in very good health and I anticipate he will remain so for the duration of his presidency, and beyond," chief physician Sean Conley said in a memorandum released by the White House.