Here's a plate that chides you when you eat too fast.
The idea behind the Mandometer is to train overweight people to eat more slowly so that they will feel satiated sooner and eat less, thereby losing weight.Talking plate scale urges diners to slow down (Via Nudge)
An 18 month study conducted by researchers at the Bristol Royal Hospital for Children in Britain has indicated that the Mandometer is an effective tool to combat obesity in children and teens. The team tested 106 clinically obese patients ranging in age from nine to 17 years old. Some of the patients had to use the Mandometer while the others received standard anti-obesity treatment. All of them were urged to practice some form of physical exercise for 60 minutes a day and to follow a healthy diet.
The results of the study were published in an article in the British Medical Journal. When participants were assessed a year into the study, the Body Mass Index (BMI) of the group who had used the Mandometer had fallen by an average of 2.1%, which is about three times more than the group who had received the standard treatment. At the end of the study 18 months later, those results still held steady.