I have wondered before why it is that you can't buy groceries with a 'compelling receipt' that shows you other database fields. Everything has calories/sugar/sa

I have wondered before why it is that you can't buy groceries with a 'compelling receipt' that shows you other database fields. Everything has calories/sugar/salt/fat etc. in a per 100g form (measurements are different in USA). So you could checkout some online shopping and see how many calories you are getting for your money. If you wanted to improve your shopping you could see what was being wasted on 'empty calories' and remove it from the order. Just being to sort the checkout by 'most salt/100g' would be interesting to me and plenty of people who do diets. However, this would not help most people to click the 'buy now' button. So it is for this reason this receipt idea has to go. Receipts only really have to be read by people who do tax expense forms. Fancy receipts have been possible for years now - you could have a full colour receipt with pictures of everything, all fonts 'on brand', as fancy as it gets. But no retailer has decided to do this, there is something for the receipt we know being the throwaway thing it is.