A recent study exploring the relationship between eating habits and mental health among adolescents in five Nordic countries has highlighted significant associations between dietary behaviours and well-being. The research, which involved over 22,000 young participants, found that healthier eating patterns were linked to better mental health outcomes, particularly when adolescents consumed breakfast regularly and had family meals together. The findings were published in the journal BMC Public Health.
The study, conducted as part of the 2017/2018 Health Behavior in School-aged Children (HBSC) survey, analysed the food and meal habits of adolescents aged 11, 13, and 15 from Denmark, Finland, Iceland, Norway, and Sweden. Researchers investigated the consumption of fruits, vegetables, sweets, soft drinks, and the frequency of meal habits such as breakfast and family dinners. These habits were then correlated with two measures of mental health: life satisfaction and subjective health complaints, such as headaches, back pain, and feeling low.
The findings revealed that adolescents who regularly consumed breakfast and ate meals with their families reported higher levels of life satisfaction and experienced fewer health complaints. Notably, meal habits, such as having breakfast daily and family mealtimes, were found to have the strongest positive association with mental health outcomes. This suggests that the social aspect of eating together, as well as the nutritional benefits of a balanced breakfast, play an essential role in supporting adolescent mental health.
Gender differences were observed, with the associations between eating habits and mental health being generally stronger among girls than boys. The study also found variations between countries, with Danish adolescents displaying weaker associations compared to their Nordic peers, particularly among boys. The researchers suggest that these differences may be due to sociocultural factors, such as the role of family support and peer relationships, which could influence eating behaviours and overall mental health.
Fruit and vegetable consumption also played a role in promoting better mental health. Adolescents with a higher intake of fruits and vegetables reported increased life satisfaction, supporting existing evidence that nutrient-dense foods are crucial for proper brain function and development. In contrast, those with higher consumption of sugar-sweetened soft drinks and sweets tended to experience more health complaints, aligning with previous studies linking high sugar intake to symptoms of stress and depression.
The researchers emphasise that promoting healthy eating habits among adolescents could yield meaningful benefits for mental health at the population level. Even small improvements in dietary behaviours, such as increased fruit and vegetable intake or ensuring regular family meals, may lead to significant enhancements in well-being. Given that eating habits are largely modifiable, they represent a practical target for interventions aimed at supporting adolescent mental health.
