Democratic presidential candidate Sen. Bernie Sanders speaks during a campaign event at at Roosevelt High on Thursday in Des Moines, Iowa. (Joshua Lott /for The Washington Post)

Democratic presidential candidate Sen. Bernie Sanders is in “very good health,” according to a letter from the attending physician in Congress released Thursday by Sanders’s campaign.

Brian P. Monahan, who said his office has served as the 74-year-old senator’s physician for 26 years, detailed a history of relatively minor medical procedures, including hernia repairs and the removal of a cyst from his vocal cord, and said Sanders has no history of cardiovascular disease.

“You are overall in very good health and active in your professional work, and recreational lifestyle without limitation,” Monahan wrote in a single-page letter to the senator from Vermont dated Jan. 20.

[Sanders says he’s ‘very healthy’ amid reports that Clinton ally is seeking medical records]

If elected president, Sanders would be 75 on Inauguration Day, the oldest man to take the oath of office. Ronald Reagan, who currently holds that distinction, took office in 1981 a few days before his 70th birthday.

Democratic presidential candidate Sen. Bernie Sanders speaks during a campaign event at at Roosevelt High on Thursday in Des Moines, Iowa. (Joshua Lott /for The Washington Post)

Hillary Clinton, Sanders’s chief Democratic rival, released a summary of her health records in July that concluded that the 68-year-old was “in excellent physical condition.”

Earlier this month, Sanders pledged to release his records before the Iowa caucuses, which take place Monday.

[Poll: Clinton leads nationally by double digits, but margin shrinks]

In his letter to Sanders, Monahan said he had last examined the senator in November, at which time Sanders was 6 feet tall and weighed 179 pounds. The examination was “normal,” the doctor wrote.

Monahan noted that over the years Sanders has been treated for conditions such as gout, mild hypercholesterolemia, diverticulitis, hypothyroidism, laryngitis, lumbar strain and superficial skin tumors.

Sanders does not use tobacco and drinks alcohol infrequently, the letter said, also noting that his last colonoscopy was normal and that he is up to date on his vaccines.