Yes indeed, there most definitely are very many fun and enlightening food, historical and cultural factoids presented in What Kings Ate and Wizards Drank and author Krista D. Ball certainly shows in her guidebook for writers of fantasy and historical novels how essential it is and how much research it can and even should be taking to make a given work of fantastical or historical fiction appear sufficiently realistic and authentic with regard to food and beverage choices. So for example, Ball shows that foraging for meals, that hunting when travelling, whilst on the road would and should generally take a lot of time, energy and very much know-how and that indeed far too often, many budding writers either err with regard to food and drink depictions being anachronistic or make their procurements appear as too ridiculously easy to be considered realistic both with regard to historical reality and also with regard to how in say a fantasy set in a Medieval British type of area, finding food and drink is often featured as too simplistically easy or too modern, too current times seeming in set-up and scope.
However and even though I have indeed found What Kings Ate and Wizards Drank quite enjoyable and diverting, aside from there being rather too many typos, syntax and word meaning gaffes to be encountered (nothing horrible and overly extreme, to be sure, but I do think that What Kings Ate and Wizards Drank could be a lot better and tighter with a bit of extra editing), in my opinion, to really show writers what NOT to do, a few actual and bona fide story examples of writers using anachronistic or unrealistic food and beverage descriptions would make the guidelines used by Krista D. Ball feel more immediate and concretely demonstrate to hopeful fantasy and historical fiction writers how not doing sufficient food and beverage based research and how making food and drink depictions unrealistic with regard to time and place can easily ruin an otherwise enjoyable and wonderful storyline (but of course, if the author, if Krista D. Ball were to use actual writing gaffe examples she has gleaned from perused novels, this could possibly be considered unacceptable and maybe even illegal).