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Genetic Testing for Obesity: Implications and Challenges
1Research Center for Health Care Decision-making, Inc., 706 East Hartwell Lane, Wyndmoor, PA, 19038, USA. msegal@healthcaredecisions.org.
Genetic testing for obesity shows limited impact on actual dietary behavior, primarily influencing weight control intentions. Negative psychological effects are rare, particularly for those who are overweight.
Area of Science:
- Behavioral genetics
- Nutritional psychology
Background:
- Genetic testing for obesity is increasingly marketed to the public.
- Concerns exist regarding potential maladaptive interpretations of genetic feedback.
Purpose of the Study:
- To review experimental literature on behavioral and psychological outcomes of genetic testing for obesity.
- To assess the current value and impact of genetic testing for weight management.
Main Methods:
- Review of experimental studies on genetic testing for obesity.
- Analysis of behavioral outcomes and psychological effects.
Main Results:
- Limited evidence suggests genetic testing for obesity improves weight control intentions and motivation, not actual dietary behavior.
- Negative psychological consequences are scarce, with greater concern for normal-weight individuals.
- Few studies have investigated outcomes from actual genetic test results.
Conclusions:
- Current genetic testing for obesity has a limited effect on behavior change.
- Further field-based research with diverse samples is needed to understand real-world impacts.
- The value of genetic testing for obesity remains questionable.
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