Genetic Obesity
Answers to common questions about genetic obesity.
Questions on this page
What is genetic obesity?
Genetic obesity refers to obesity caused partly or predominantly by specific genetic changes affecting appetite, satiety, energy balance or metabolism.
Is all obesity genetic?
Genetics influences body weight in everyone, but most obesity is caused by a complex interaction between many genes and environmental factors.
What is monogenic obesity?
Monogenic obesity results from a pathogenic change in a single gene that plays an important role in regulating appetite or energy balance.
When should genetic obesity be suspected?
Consider evaluation particularly when there is:
- Severe obesity beginning very early in childhood
- Extreme or persistent hunger
- Poor satiety
- Rapid excessive weight gain
- Strong family history of severe early-onset obesity
- Developmental or syndromic features
- Obesity that is unusually severe for the child's circumstances
Is genetic obesity caused by lack of willpower?
No. Some genetic forms of obesity can directly affect appetite regulation and satiety.
Can genetic obesity be treated?
Yes. Management depends on the underlying genetic condition and may include nutrition, behavioural support, obesity medicines and, in selected disorders, targeted treatments.
Can genetic testing help in obesity?
In carefully selected patients, genetic testing may identify an underlying cause and may influence treatment or family counselling.