It can be difficult to determine the healthiness of a certain food just by looking at it or taking a glance at its packaging.

Food apps that rate the healthfulness of packaged foods have become increasingly popular. You can scan a food package with your phone camera and the app will rank it for its nutritional content. Some ...

What if your phone could tell you which foods to skip and which ones to trust — with just a scan? That's the idea behind Yuka, a mobile app gaining popularity in the U.S. for its ability to rate food ...