I don't know, I wouldn't think it would matter that much....
I'm with JKurz in that I shove my food in my mouth until it's gone....it takes me 3 times as long to prepare as it does to eat....
It can be bad though......one time I ate a chicken breast in less than a minute (i was late for class) got up and got my shit together, then I broke out in a sweat, got really hot and had to sit down.....a few seconds later I threw up the chicken breast in a garbage can - what a waste!