It doesn’t matter how much you push the idea of healthy eating, low-fat options, fresh ingredients, 5-a-day fruit and vegetables and a well-balanced diet, if in the end you offer pizza and ice-cream half price on a sign this big before you get into the shop, then that says a lot about your values and what you are actually promoting.
You could argue that they’re just doing good deals on what ‘people’ want. But in fact, without supermarkets, ‘people’ wouldn’t think “I know, I’ll have a pizza’ every time they thought about food. If you’re looking for a reason that there’s an obesity epidemic, this may be a good place to start.