We all wonder as why some people, who eat well, never gain weight. The new study says that it is due to their DNA.

According to the scientists of University of Cambridge, a series of genes which may speed up someone’s metabolism or help them burn fat more quickly and these genes were found in more than 1,600 thin but healthy people.

As per the researchers, such people have particular genes of their own.

Researchers are also planning a separate study to see what happens in their bodies when they overeat.

Professor Sadaf Farooqi, senior author of the study from the Wellcome-MRC Institute of Metabolic Science at the University of Cambridge, said, “We found that there are thin people who are not interested in eating, which may be in their genes. But other people told us they really like their food and eat lots but do not put on weight.”

He added, “This is proof that there are groups of people who really can eat what they want and stay thin. The research shows for the first time that these healthy thin people are generally thin because they have a lower burden of genes that increase a person’s chances of being overweight and not because they are morally superior.”

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