Non-alcoholic fatty liver disease (NAFLD) is becoming increasingly common in children and teenagers.
Research suggests that maternal health and infant feeding choices may influence a child’s future liver health.
Children born to overweight mothers who were not breastfed may have a higher likelihood of developing fatty liver during adolescence.
Exclusive breastfeeding for the first six months has been associated with a significantly lower risk.
In This Article:
Why More Children Are Developing Fatty Liver Disease Today
Non-alcoholic fatty liver disease (NAFLD) is no longer limited to adults. It is now being diagnosed more frequently in children and adolescents.
Research suggests that fatty liver may affect a significant proportion of overweight youth. In some groups, studies estimate that up to half of overweight teenagers may show signs of fatty liver.
The condition often develops silently. Many children experience few or no noticeable symptoms in the early stages. Over time, however, excess fat in liver cells can lead to inflammation and long-term complications such as:
- Liver scarring (fibrosis)
- Advanced liver disease (cirrhosis)
- Greater risk of developing metabolic and cardiovascular conditions in adulthood
Because symptoms can be subtle, early prevention and awareness are especially important.
Lifestyle Risk Factors for Fatty Liver
In adults, several well-known lifestyle factors increase the likelihood of developing fatty liver disease. Many of these factors are also relevant for children.
Common contributors include:
- Excess body weight
- Low levels of physical activity
- Diets high in added sugars and refined carbohydrates
- High consumption of fructose‑rich beverages and packaged snacks
- Diets rich in unhealthy fats
- Alcohol consumption in adults
- Imbalances in gut bacteria
- Low vitamin D levels
These factors can place metabolic stress on the liver and encourage the accumulation of fat within liver cells.
How Maternal Health Influences a Child’s Liver
Researchers have increasingly explored how maternal health during pregnancy and early childhood feeding practices may influence a child’s future risk of metabolic conditions.
A research team led by Dr. Oyekoya Ayonrinde, a senior lecturer in medicine and pharmacology at the University of Western Australia, investigated whether early-life nutrition and maternal health could affect the risk of fatty liver in teenagers. (1)
The team analyzed data from the long-running Raine Study, which follows participants from birth into adulthood.
As part of the research, ultrasound examinations were performed on the livers of 1,170 seventeen-year-olds to assess liver health.
Research Linking Breastfeeding and Liver Health
The findings revealed an interesting trend.
Approximately 15 percent of the teenagers examined showed signs of fatty liver disease. Many of these adolescents had either not been breastfed or had been breastfed for a shorter duration during infancy.
Teenagers who had been exclusively breastfed for between six and nine months showed the lowest prevalence of fatty liver.
According to the study analysis, exclusive breastfeeding for at least six months was associated with roughly a one-third reduction in fatty liver risk.
Researchers also observed that maternal weight played an important role.
Children born to mothers with a healthy body weight had an even lower likelihood of developing fatty liver, with some estimates suggesting the risk was reduced by up to half.
These findings were presented at the International Liver Congress 2016 in Barcelona. (2)
Early Childhood Weight and Future Liver Risk
Body weight during early childhood may also influence long-term liver health.
Some studies suggest that children who develop obesity at a very young age—particularly before the age of three—may have a higher risk of developing fatty liver later in life.
This highlights the importance of establishing healthy eating patterns and regular physical activity early in childhood.
Supporting healthy growth during these early years may help reduce the likelihood of metabolic conditions in adolescence and adulthood.
Supporting Healthy Liver Development in Children
Several lifestyle factors can help support healthy metabolic development in children:
- Encouraging balanced, whole-food nutrition
- Supporting breastfeeding where possible during infancy
- Maintaining a healthy body weight in both mother and child
- Promoting regular physical activity and active play
- Limiting excessive intake of sugary beverages and ultra-processed foods
Healthy habits during pregnancy, infancy, and early childhood may play an important role in shaping long-term liver health.
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