The idea that St. Thomas Aquinas was "portly" or even obese is likely an exaggeration that occurred over time due to overemphasis of certain aspects of his appearance. Early accounts depict him as being both very tall and strong having a big head, often with a build closer to a wrestler or football player than that of an obese man. As far as I can tell, St. Thomas was certainly an imposing figure but people have decided to engage in exaggerations based on some accounts of his appearance to the detriment of others.
For example, one of the earliest works covering St. Thomas' life was written by William de Tocco in the early 14th century, St. Thomas is described as "showing himself a robust and virile man" during manual labor. Contrary to the extremely exaggerated accusations of extreme gluttony by people like Shibley, William de Tocco emphasizes that the physical stature of St. Thomas was in accord with moderate and virtuous conduct which would preclude severe gluttony, "[I]t seems that God had fashioned his body as the noblest of instruments, which St. Thomas always held subservient to acts of virtue and which he never permitted to contravene the judgement of reason."
The iconographic tradition is also not uniform, with large variation across the centuries. I'll link some early depictions of St. Thomas Aquinas from the 14th and 15th century that don't match the "morbidly obese" claims:
It might be added that Dominicans had the explicit calling to crown their preaching by leading virtuous lives marked by poverty. As an example of this, especially in the early days, Dominicans traveled a lot by foot as a form of austerity. This could certainly work with having a bit of a girth, but the full experience of 13th century Dominican life is hard to square with "morbid obesity" or being "physically grotesque". We also know that Aquinas was humble, spiritual and deeply motivated to join this new mendicant order specifically. He resisted all attempts of his noble family to steer him in other directions that would have been more prestigious in the eyes of the world. I also remember reading that Aquinas ate only once a day to devote himself more fully to his work (not sure where though).
> Early accounts depict him as being both very tall and strong having a big head
The article, on the other hand, makes a point that the skull is quite small… (which seems to be the principal argument for the rather slim reconstruction)
At this point, it's probably really more a case of iconography (which, for the most, features Aquinas as one of the most prominent portly men in history) than of actual history. But, I think, any concepts or notions guiding the reconstruction should have been provided, and I'm kind of missing these.
For example, one of the earliest works covering St. Thomas' life was written by William de Tocco in the early 14th century....The iconographic tradition is also not uniform, with large variation across the centuries.
Isn't that kinda the point, tho? de Tocco was writing, what, about 50 years after Aquinas passed, and while he certainly could have (probably had?) first hand sources of Aquinas life, my instinct is that even so these are the sorts of passages of time where objective fact becomes muddled with both nostalgia and agenda, if not outright politics & intrigue. And over extended time, like most notable historical figures, Aquinas is reframed to suit the narrative of the time. I mean, it's not like Livy saying "that thing that happened a couple of centuries ago? This is how it went down, no doubts.", but isn't the real answer "we don't know and probably never will" for most of these questions of minutia like 'how fat was he, really'?
N.B. - not intending to distract from your very informative post.
For example, one of the earliest works covering St. Thomas' life was written by William de Tocco in the early 14th century, St. Thomas is described as "showing himself a robust and virile man" during manual labor. Contrary to the extremely exaggerated accusations of extreme gluttony by people like Shibley, William de Tocco emphasizes that the physical stature of St. Thomas was in accord with moderate and virtuous conduct which would preclude severe gluttony, "[I]t seems that God had fashioned his body as the noblest of instruments, which St. Thomas always held subservient to acts of virtue and which he never permitted to contravene the judgement of reason."
The iconographic tradition is also not uniform, with large variation across the centuries. I'll link some early depictions of St. Thomas Aquinas from the 14th and 15th century that don't match the "morbidly obese" claims:
https://upload.wikimedia.org/wikipedia/commons/c/c2/Lippo_Me...
https://www.kressfoundation.org/kress-collection/artwork/498...
https://catholiceducation.org/en/culture/art/saint-thomas-aq...
https://catholicclassicalict.wordpress.com/wp-content/upload...
https://www.wikiart.org/en/fra-angelico/st-thomas-aquinas-14...
There is another source I recall reading recently that gave credence to the thinner depictions, but unfortunately I haven't been able to dig it up.