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Study finds how dietary restraint reduces effects of genetic risk of obesity – World News Network

London [UK], July 16 (ANI): According to new research, persons with obesity risk genes tend to feel more hungry and lose control over their eating, but practising dietary restrictions may help to reverse this.
Research from the University of Exeter, Exeter Clinical Research Facility, and the University of Bristol, supported by the Medical Research Council Doctoral Training Partnership and published in the International Journal of Epidemiology, has found that individuals with a higher genetic risk of obesity can reduce the effects transmitted through hunger and impulsive eating by up to half by exercising restraint.
The paper is entitled “Mediation and moderation of genetic risk to obesity through eating behaviours in two UK cohorts” and is published in the International Journal of Epidemiology.
Psychology PhD student, Shahina Begum, from the University of Exeter is lead author and said: “At a time when high-calorie foods are aggressively marketed to us, it’s more important than ever to understand how genes influence BMI. We already know that these genes impact traits and behaviours such as hunger and emotional eating, but what makes this study different is that we tested the influence of two types of dietary restraint — rigid and flexible — on the effect of these behaviours. What we discovered for the first time was that increasing both types of restraint could potentially improve BMI in people genetically at risk; meaning that restraint-based interventions could be useful to target the problem.”
Genes linked to obesity increase BMI, with up to a quarter of this effect explained by increases in hunger and uncontrolled (including emotional) eating. There are over 900 genes that have so far been identified by researchers as being associated with BMI and several studies suggest these risk genes influence feelings of hunger and loss of control towards food.
This study examined 3,780 adults aged between 22 and 92 years old from two UK cohorts: the Genetics of Appetite Study, and Avon Longitudinal Study of Parents and Children. Their weight and height were measured, and they provided a DNA sample via their blood to calculate an overall score for their genetic risk of obesity. They then completed questionnaires to measure 13 different eating behaviours, including disinhibition (a tendency to engage in binge or emotional eating) and over-eating due to hunger.
As expected, researchers found that a higher genetic risk score was associated with a higher BMI, partly due to increased disinhibition and hunger. However, results also found that those who had high levels of dietary restraint reduced those effects by almost half for disinhibition and a third for hunger — suggesting that restraint may counteract some of the effects of genetic risk.
There are different types of dietary restraint, including flexible strategies — such as being conscious about what you eat and deliberately taking small servings — to rigid strategies, like calorie counting. The study tested the influence of both types of restraint for the first time and found both could potentially improve BMI in people genetically at risk. (ANI)


Disclaimer: This story is auto-generated from a syndicated feed of ANI; only the image & headline may have been reworked by News Services Division of World News Network Inc Ltd and Palghar News and Pune News and World News


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