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Politics Home Article | Children’s Mental Health Starts on The Dinner Plate
For too long, the debate about children’s mental health has focused almost exclusively on access to services. Expanding CAMHS provision, reducing waiting lists and supporting schools are all essential. But if we are serious about reversing the deterioration in young people’s mental wellbeing, we must also look more closely at prevention, including the factors that may be driving the problem in the first place.
One factor may be hiding in plain sight: the food our children eat. A major recent review published in Child and Adolescent Psychiatry and Mental Health (April 2026) looked at evidence from more than 2.5 million children and adolescents worldwide. It found a consistent link between unhealthy diets and poorer mental health outcomes. Young people consuming more ultra-processed and ‘junk’ foods were more likely to experience sleep problems, anxiety, depression, stress and ADHD-related symptoms (1).
Researchers increasingly believe there are good reasons why unhealthy foods affect mental health. Diet affects inflammation, metabolic health and the gut-brain axis, all of which are increasingly recognised as important influences on mental wellbeing. Childhood and adolescence are also critical periods of brain development, making young people especially vulnerable to poor nutrition.
Research from the French EDEN birth cohort found that low maternal adherence to a healthy diet during pregnancy was associated with an 87 per cent higher likelihood of children following a moderately high anxiety and depression symptom trajectory between the ages of three and eight. This should encourage policymakers to give nutrition a much more prominent place in prevention policy.
The debate around unhealthy food has traditionally focused on obesity, diabetes and cardiovascular disease. Those concerns remain vitally important. But if poor diets are also contributing to poor sleep, greater psychological distress and a higher risk of mental health difficulties, then the benefits of improving children’s diets may be much greater than we previously understood. BANT applauds the Chefs in Schools for their efforts to improve school food.
No single policy will solve the children’s mental health crisis. But diet is one of the few risk factors that governments can influence at scale. A Nutrient Profiling Model which is fit for purpose should therefore be viewed as part of a wider prevention strategy.
Of course, family circumstances, poverty, housing, education, social media and access to support all play important roles. But if we are serious about improving children’s mental health, we cannot afford to ignore what is on their plate. Mental wellbeing does not start in the clinic. It starts much earlier — at home, at school, and around the dinner table.
References
- Ulm C, Hill F, Mills SD, Chelius C, Hecht EM. Association between unhealthy food consumption and mental health outcomes in children and adolescents: an umbrella review. Child Adolesc Psychiatry Ment Health. 2026 Apr 2;20(1):70. doi: 10.1186/s13034-026-01079-4. PMID: 41928295; PMCID: PMC13169651.
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