For Dieters, Smart Glasses Could Detect and Record Every Chew

Whether you're trying to lose weight, eat healthier, or track your diet for other reasons, there's no truly easy and automatic way to log your food intake. Today's best options are apps that require you to pick the food items you're consuming or manually enter that information. But what if the app knew, without your help, that you'd just spent a half hour crunching on cookies? That's the idea behind the "Diet Eyeglasses" revealed earlier this month at the IEEE Body Sensor Networks conference in San Francisco. The smart glasses have built-in sensors that detect muscle activity related to chewing, which could enable the continuous and unobtrusive monitoring of every morsel users chow down on.