I have read a handful of books that focus on food in WWII because I have always sensed that much of the world was hungry through out some or all of the war, almost all because of man-made decisions.
And that tens and tens of millions died from those man-made hungers.
Interestingly, all these books have been written by women, including the latest one I am currently reading, NAZI HUNGER POLITICS, by Gesine Gerhard.