Japanese scientists have developed the goggles, which can make food 50% larger than it really is. Research has shown that the brain takes in the information it receives from sight rather than from the stomach. This means that if food appears larger, people are likely to eat less of it.
The goggles - developed at the University of Tokyo - are able to magnify the food, making it appear bigger while people's hands remain normal-sized. This causes eaters to believe that they are consuming large portions of food.
Takuji Narumi, a professor who is working on the project, said: "By changing the size of the food and scaling it up we have shown that participants eat about 10% less over the course of a day."
The device also has a setting that fools dieters into believing they are eating something sweet and chocolatey when in fact it is a savoury snack.
The obesity crisis is continuing to grow in several parts of the world and this device could be an aid to reducing it, but researchers have not yet made plans to release the goggles for commercial sale.
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