I wanted at least one character to be a bit overweight, so I essentially elected her to the task. Because the first seven or so chapters exist to foreshadow much of the rest of the story, her weight does the job admirably. For, who to better contrast with starving characters than an overweight one?
Unless the reader can immediately infer who's speaking, they might start reading, thinking it's John who's talking. But then they get to the end and, oops, it's really Mary declaring her love of dairy products.
So currently, my intention, for next year’s NaNoWriMo, is that I am going to start writing the third trilogy of three in the Time Addicts/Obolonks universe. But I will need to iron out the plot! And as I look at what I've got written and its loose ends, I will try to formulate … something. We'll see.