So I was given a lesson in just how ignorant my mother is in regards to nutrition and body composition measures. Today, while we were making dinner, I saw that she had gotten out an old container of Lay's French Onion dip to eat with celery just before we got on the scale because it was "low in carbs." I pointed out all the problems with the dip before tossing it. Turns out, she had been eating it just before we did our body composition measurements.
Still, her body composition measurements are suspect (you're not supposed to take them just after eating) and she really needs to understand that low in carbs =/= healthy.