Food pyramid

I'm in the supermarket with a friend picking up a couple of stuff. We're waiting in line at the cash register. A woman comes behind us with a cart full of food. She is enormous. A little skinny girl is on her side.
The cart is filled with pizza boxes, chips, cookies, ice cream buckets. I don't see any vegetable in that cart. No fruit. Not even bananas. The little girl rushes to grab a couple of small bags of fried onion rings that are displayed near the cashiers. Her mom (?) opens one and start eating, sharing with the little one. I wonder if she realizes she is killing her daughter slowly...