Sarah White hat einen wirklich unterhaltsamen Artikel im CalorieLab verfaßt, den ich einfach so wie er ist hier wiedergeben möchte:
Leave it to Japan to be the first country to have this cool gadget, and thank them for using it on food so we can talk about it here. McDonald’s is now placing codes on the packaging of many foods so that eaters can scan the package with their cell phones and find out the nutritional information. 
Known as a QR Code, these printed codes look somewhat like a barcode and are scannable by many photo cellphones. All sorts of information can be packed into these little codes, from the website to find the amount of calories and fat in a Big Mac to a company’s contact information on a business card.
The codes were originally developed in Japan in 1994 to track parts for automobile manufacturers. Now they have taken off with the ubiquity of camera phones that can easily scan and pick up data from the two-dimensional symbols. The main purpose for QR Codes is to automatically input information into a phone (such as the data from a business card) without having to type it in.
Scanning the QR Code on any of 19 sandwiches, eight sides and five salads brings up a URL, which will take customers to the nutritional information for the food they are eating. Customers will be able to view the amount of calories in their meal, as well as the amount of sodium, fat, protein and carbs. Information is available both for individual items and meals. Customers can also find out about allergy information, though it might be a little too late by the time you’ve already purchased your meal.
People who don’t have camera phones don’t have to live in worry that they’re getting too much saturated fat without knowing it. The company has also set up short, easy-on-the-thumb URLs so people can look up the nutritional information on the food they’re about to consume. You can see the QR Codes and the URLs for each food item here, although the web pages will only load if you are connecting from a cell phone in Japan.
For those who live in less technologically savvy parts of the world, like, say, the United States, you can find this information printed on the packaging, on the back of tray liners, in leaflets available at the counter, or on the internet. And if you live in Europe, McDonald’s has a nutritional information website just for you. So at least we can eat in full understanding of what we’re putting in our bodies, though I’ve got to say the lack of scannable food in my country is a little disappointing.
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