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Gene triggers Unhealthy Eating

Posted on Thursday, December 11, 2008 at 12:24PM by Registered CommenterPennino Corp. CEO | CommentsPost a Comment | References33 References

Gene 'triggers unhealthy eating'

People who carry a gene variant linked to obesity eat an average of 100 extra calories per meal, research suggests.

The key variant of the FTO gene is thought to be carried by 63% of people.

The New England Journal of Medicine study, by the University of Dundee, carried out eating tests on 100 children aged four to 10.

Those with the gene variant chose foods with more sugar and fat, suggesting they were instinctively drawn to them rather than healthy options.

Each child in the study took part in three eating tests, offering a range of different food types.

The researchers found that the gene variant had no impact on the speed at which the body broke down food, or on how active people were.

There was also no evidence that those who carried it had any trouble registering when they were full up and should stop eating.

However, they did seem to be instinctively attracted to more calorific foods.

Lead researcher Professor Colin Palmer said: "This work demonstrates that this gene does not lead to obesity without overeating and suggests that obesity linked to this gene could be modulated by careful dietary control.

"What it effectively shows is that the people with the relevant variants on the gene have a trait which may lead them to eat more unhealthy, fattening foods."

Professor Palmer said the findings also reinforced the idea that soaring obesity rates were closely linked to the widespread availability of cheap, calorie-packed foods.

For people carrying the relevant gene variant, these may simply be too tempting to resist.

Research has shown that people carrying one copy of the key FTO variant (49% of the population) have a 30% increased risk of obesity, while for those carrying two copies the increased risk is almost 70%.

Read the rest of the article:

http://news.bbc.co.uk/2/hi/health/7773146.stm

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