Researchers from Clemson University in South Carolina in the US have created a watch-like device that calculates every bite you take while tallying up the calories.

Announced August 2, the Bite Counter tracks a pattern of wrist-roll motions to identify when the wearer has taken a bite of food. "Think of it as a pedometer for eating," states the release.

Calories are calculated from bite count based on a formula similar to that found in exercise equipment estimating calories burned. The designers claim the readings are 90 percent acccurate.

While you're eating, you can check the device for a real-time bite count, or tally up your daily total, and set a count-based alarm to let you know when it's time to put the fork down. After your meal, you can download the data log to your computer via the device's USB for long-term analysis.