Alvise "Luigi" Cornaro (1467[1]–1566) was a Venetian nobleman who wrote treatises on dieting, including Discorsi della Vita Sobria (Discourses on the Sober Life). Finding himself near death at the age of 35, Cornaro modified his eating habits on the advice of his doctors and began to adhere on a calorie restriction diet. Fourteen ounces of solid food and seventeen ounces of wine was the daily allowance he allowed for himself initially. He later reduced his daily food intake to no more solid meat than an egg.
His first treatise was written when he was eighty-three, and its English translation, often referred to today under the title The Sure and Certain Method of Attaining a Long and Healthful Life, went through numerous editions; this was followed by three others on the same subject, composed at the ages of eighty-six, ninety-one and ninety-five respectively. The first three were published at Padua in 1558. They are written, says Joseph Addison, in the early eighteenth-century periodical The Spectator (No. 195), "with such a spirit of cheerfulness, religion and good sense, as are the natural concomitants of temperance and sobriety." He died at Padua at the age of 98.
In the work known as Illustrissimi, a collection of letters written by Pope John Paul I when he was Patriarch of Venice, Cornaro serves as one of the "recipients" of the letters. There are 40 letters in all, mainly to people in Italian history and fiction, but also to internationally well known fictional and historical characters such as Pinocchio, Charles Dickens, Hippocrates, and Jesus.