Scientists believe they may have discovered what causes some of us to overeat - and it's all down to taste. U.S. researchers found that people who don't taste fat in food are more likely to overeat and therefore become obese, Daily Mail reports.

The study adds to the growing body of research linking the taste of fat and obesity - and fat as a vital contributor to feeling full.

The researchers, from Deakin University, found that people who can't taste fat in food eat significantly more at lunch after having a high fat breakfast than those who can taste fat.

During the study, the participants' sensitivity to fat taste was tested. Then, over four separate days, they ate a high fat, high carbohydrate, high protein breakfast. They were then provided with a buffet-style lunch where they ate a variety of foods until comfortably full.

 The participants' perceived hunger and fullness were then recorded - along with how the amount of calories they consumed.

Professor Keast, whose findings were published in the journal Appetite, said: 'It is becoming clear that our ability to taste fat is a factor in the development of obesity.