- How much fat you carry on your body can be largely due to your genes, a new study found.
- While some people with low credit discipline show discipline about nutrition and exercise for their lean physique, research shows that this is not always the case.
- "We have much less weight control than we would like to think," said the lead author of the study.
Thin people are prone to genetic advantage, not always because they are more disciplined when it comes to portions control.
New studies at Cambridge University show that genetic maps are arranged in favor of thin people and those who are considered obese.
"This study shows for the first time that healthy thin people are usually thin because they have a lower weight on the genes that increase the chances of being overweight rather than because they are morally superior as some people would have guessed, "says Professor Sadaf Faroki of the Wellcome-MRC Institute of Metabolism at Cambridge, who runs the study.
Although it is easy to judge and criticize an individual for their weight, "science shows that things are much more complicated," he added. "We have a lot less control over our weight than we would like to think."
DNA of the 1622 thin volunteers of the experiment called STILTS was compared to 1,985 heavily obese people and 10,433 normal weight controls.
Researchers recognize that factors such as easy access to high-calorie foods and a sedentary lifestyle can affect the weight of a person, but they say there are significant individual variations in a population sharing the same environment.
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"We already know that people can be weak for various reasons," said Professor Faruki after publishing the study in PLOS Genetics. "Some people just do not care about food, while others can eat whatever they want, but they never get busy." If we can find the genes that prevent them from filling their weight, we may be able to target these genes to find new weight loss strategies and help people who do not have this advantage. "
Three out of four (74%) of the STILTS group had a family history of being weak and healthy and the team found some genetic changes that were significantly more common in thin people.
The authors of the study say they can allow them to identify new genes and biological mechanisms that help people remain weak.
More than six out of 10 (59-65%) adults in the UK are overweight, whereas one in four adults and one in five children aged 10 to 11 are overweight, according to the NHS.
Dr. Ines Barroso of Wellcome Sanger, who co-authored the study, added: "As we expected, we found that obese people have a higher genetic risk than normal people, contributing to the risk of overweight."