Regardless of whether or not gluten-intolerance is as widespread as some claim it is, I'd like to see a simple change to food labeling to make it easier for those who want to know what they are eating to find out: versioning on labels.<p>The way it works now, I go to the supermarket. I see, say, a frozen spaghetti and meatball entree. I carefully read the long label to see if it has anything that makes me want to avoid it [1]. It passes. I buy it. I like it. Can I now just buy it again, without reading the label?<p>Nope! Food companies like to tinker with their products to improve consumer satisfaction and to cut their costs and increase their profits, so I need to read the label again.<p>If they put version information, such as a last change date, on the ingredient list I could then just glance at the date and see if it has changed since I last bought the item.<p>This should be doable at almost zero cost to the food producers if it is phased in by making the switch to versioning on a given product the next time they are changing the label.<p>[1] I have no known foods that I must avoid for medical reasons, but I have some admittedly irrational requirements. Some time when I was a kid, I decided for some reason to stop eating meats other than beef and pork. I have sometimes described myself as a lacto-ovo-bovo-porco vegetarian.