Research brief: ‘Obesity gene’ identified

UK researchers have identified the clearest yet genetic link to obesity. People with two copies of the gene variant FTO were found to have a 70 per cent higher risk of being obese than those with no copies. Those with a single copy of the FTO gene were also at a higher risk of obesity, 30 per cent, compared with those with no copies. The link was identified through a genome-wide study of 2,000 people with type-2 diabetes and 3,000 controls (Science Online 2007).

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