Was intermittent fasting debunked in 1560?

Here’s what Luigo Cornaro, a Renaissance man who lived to the age of 98 by eating a frugal diet (caloric restriction) had to say about what is known as ‘Intermittent fasting’ today:

In his Discourses on the Sober Life published in 1560:

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‘’ There are others, who, though their stomachs become weaker and weaker with respect to digestion, as they advance in years, cannot, however, be brought to retrench the quantity of their food, nay they rather increase it. And, because they find themselves unable to digest the great quantity of food, with which they must load their stomachs, by eating twice in the four and twenty hours, they make a resolution to eat but once, that the long interval between one meal and the other may enable them to eat at one sitting as much as they used to do in two: thus they eat till their stomachs, overburthened with much food, pall, and sicken, and change the superfluous food into bad humours, which kill a man before his time. I never knew any person, who led that kind of life, live to be very old. All these old men I have been speaking of would live long, if, as they advanced in years, they lessened the quantity of their food, and eat oftener, but little at a time; for old stomachs cannot digest large quantities of food; old men changing, in that respect, to children, who eat several times in the four and twenty hours. ‘’

https://www.gutenberg.org/cache/epub/30660/pg30660.html

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Any thoughts?