Novel "thrifty" models of increased eating behaviour

Area of Science:

• Evolutionary biology
• Metabolic research
• Psychiatric epidemiology

Background:

• The thrifty genotype and phenotype hypotheses explain the rise in obesity and diabetes.
• Previous research focused on cardio-metabolic diseases.
• Emerging research links these hypotheses to psychiatric disorders.

Purpose of the Study:

• To review research on the early developmental origins of eating-related phenotypes using a thrifty framework.
• To explore the relevance of thrifty mechanisms in psychiatric disorders characterized by overeating.
• To identify potential preventative interventions for psychiatric disorders.

Main Methods:

• Literature review of studies examining the thrifty framework in relation to eating behaviors and psychiatric disorders.
• Analysis of the role of environmental adversity in the development of these conditions.
• Synthesis of findings to understand early developmental origins.

Main Results:

• The thrifty framework is relevant to understanding the early origins of eating-related phenotypes in psychiatric disorders.
• Environmental adversity plays a significant role in psychiatric disorders involving overeating.
• Early developmental origins of increased eating behavior are likely influenced by thrifty mechanisms.

Conclusions:

• A thrifty model offers a new perspective on the early origins of eating behaviors relevant to psychiatric disorders.
• Understanding these origins can lead to targeted preventative interventions during critical developmental periods.
• This approach may provide novel strategies for addressing common and challenging psychiatric conditions.