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Genetically determined lean mass and dietary response.

Satya Dash1,2, Andrew D Paterson2,3,4

  • 1Department of Medicine, University Health Network, Toronto, Ontario, Canada.

Diabetes, Obesity & Metabolism
|December 7, 2020
PubMed
Summary

Genetic factors influencing lean mass may affect weight loss success on specific diets. Personalized nutrition strategies could improve dietary adherence and long-term weight management.

Keywords:
genetic risk scorelean massweight loss

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Area of Science:

  • Nutritional Science
  • Genetics
  • Obesity Research

Background:

  • Weight loss is challenging to sustain due to endocrine changes promoting food intake and energy efficiency.
  • Dietary adherence, rather than macronutrient composition, is a key predictor of successful weight loss.
  • Genetic factors influence macronutrient preferences, suggesting potential for personalized dietary interventions.

Purpose of the Study:

  • To investigate the association between a genetic risk score for lean mass and weight loss outcomes.
  • To determine if genetic predisposition influences response to low-fat versus high-fat diets.
  • To explore the long-term effects of genetic variants on dietary response and weight management.

Main Methods:

  • Development of a genetic risk score based on variants linked to increased lean mass.
  • Assessment of weight loss and dietary adherence over 6 months and 2 years.
  • Comparison of dietary response between low-fat and high-fat diet groups.

Main Results:

  • A genetic risk score for lean mass was associated with increased satiety and weight loss on a low-fat diet at 6 months.
  • This association was attenuated by 2 years, indicating a time-dependent effect.
  • No significant association was observed with a high-fat diet.

Conclusions:

  • Genetic variants associated with lean mass may influence individual responses to specific dietary interventions.
  • Personalized nutrition approaches, informed by genetic profiles, could enhance weight loss sustainability.
  • Further research is needed to establish causal links between genetically determined lean mass and dietary response.