Web Desk: A new sensor-based device which you could wear on your tooth and it shall detect the number of calorie intake per serving.
This device has been credit by engineering students of Tufts University. This can sense the calories consumed and wirelessly transmit the data to smartphone application.
The sensor will be made up of a porous silk film or a hydrogel that responds to charge in pH or temperature. It also detects chemicals and nutrients, reacting to different inputs with a shift in its electrical properties further sending radio frequency waves to the app.
It could easily detect the amount of sugar and salt. This will help in deciding the quantities of the food serving. It would count the number of footsteps you took the per day calories intake.