Gene in brain’s reward system linked to childhood obesity

Washington – A new study has linked a particular gene in the brain’s reward system to childhood obesity and tasty food choices, particularly for girls. Contrary to “blaming” obese individuals for making poor food choices, team led by Michael Meaney of McGill University suggested that obesity lies at the interface of three factors: genetic predispositions, environmental stress and emotional well-being. For the study, researchers tested 150 four-year old MAVAN children by administering a snack test meal. The children were faced with healthy and non-healthy food choices. Mothers also completed a questionnaire to address their child’s normal food consumption and preferences. “We found that a variation in a gene that regulates... more »

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