Scientists at Cambridge University made the discovery after testing volunteers with large chunks of chicken Korma and Eton mess desert.
Some of the meals were high in fat, while others were low-fat versions.
experts included participants who were overweight due to a defect in a gene called MC4R, and lean participants and others who were overweight, but did not have the gene variant.
study found that the gene carriers ate almost twice the amount of korma high fat than lean counterparts.
also ate 65 percent more than the obese group as a whole
with respect to the pudding, participants were given a choice of versions low, medium and high sugar desert -., including strawberries, cream and meringue.
researchers found lean and obese individuals enjoyed the high sugar Eton major disaster.
people with defective MC4R gene showed they had less of a sweet tooth than the other groups, eating significantly less than the three desserts.
Scientists said one of every 1,000 people have a defective MC4R gene that makes them more likely to gain weight.
Scientists believe that these individuals may prefer foods high in fat and inadvertently, which can contribute to your weight problem
Professor Sadaf Farooqi, lead researcher of the Institute Research Council, Wellcome Trust-Medical metabolic Science at the University of Cambridge, said:.. “our work shows that, even if well control the appearance and taste of the food, our brain can detect nutrient content
“most of the time we eat foods that are high in fat and high sugar content.
“to carefully test these nutrients separately in this study, and testing a relatively uncommon group of people with the MC4R defective gene, we were able to demonstrate that specific brain pathways can modulate food preference “
professor Farooqi said the pathways in the brain had evolved to regulate food preferences to meet times of famine
She said,”.. when there is not much food around, we need the energy that can be stored and accessed when needed :. fat provides twice as many calories per gram than carbohydrates or protein and can be easily stored in our bodies
” as such, has a path that tells you to eat more fat at the expense of sugar, which can only store a limited extent in the body, it would be a very useful form of defense against hunger. “
The study was published in the journal Nature Communications.
This comes after council argue Clinicians should prescribe exercise as ‘antidote’ for health crisis