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Scan any food with your smartphone and know exactly how many calories it has

Scan any food with your smartphone and know exactly how many calories it has
PHOTO COURTESY OF 3DERS

If you're like most people, you've tried to lose weight, or you're trying right now. To help, you may be wearing a fitness tracker to make sure you're getting enough exercise.

You're probably also counting calories. You may be figuring that out in your head, which is nearly impossible. Or you may be using a smartphone app to get a pretty good idea how many calories are in the food you're eating, like a spinach salad or hamburger.

But there's a new smartphone device in development at the University of Washington that'll more precisely tell you how many calories you're eating. The NutriRay3D scanner (see photo below) uses laser lights and imaging technology to create a 3-D map of the food you're eating.

The idea is that the 3-D map will let it know the volume of food you're eating. The NutriRay3D prototype already has the caloric information for 9,000 types of foods.

NutriRay3D

Next page: Calorie counter with 90% accuracy
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