For those who really want to lose weight or eat healthily, Israel’s BitBite will provide real-time data to help you change your eating habits.  BitBite is an app and an earpiece containing a microphone, Bluetooth chip and other sensors that track what you eat, how much and how quickly you eat.

http://nocamels.com/2014/11/bite-into-this-bitbite-the-earpiece-sensor-that-keeps-track-of-your-eating-habits/

https://www.youtube.com/watch?v=qU2w_qiP4Ck

https://www.indiegogo.com/projects/bitbite-track-and-improve-your-eating-habits–3