Rarely read so much BS...sorry but there are even professional athletes that are chubby if not outright fat. Google butterbean for example. and you know how hard boxing is i hope. In addition...if we talk FR. ican only say "mirt the moneylender" as a first and there was a fat cleric of torm in one novel series i cant
remember just now.
A successful adverturer gets gold pretty fast and if you spend that on booze and food...gues what happens...you get fat. Even as an adventurer.
This in entirely accurate - UFC fighters Tank Abbot and Big Country are real life barbarians. Lots of old school rugby players could run all day but carried hefty beer bellies... from beer. It is not at all immersion breaking to have some fat people doing athletic things. It's much more immersion breaking to have a small elf woman heft a zweihander but we've been okay with this for a long time.
