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Adults with ADHD show higher emotional eating and lower cognitive flexibility in case-control studyAdults with ADHD show more emotional eating and less mental flexibility in study

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Key Takeaway
Consider screening for emotional eating in adult ADHD patients, but recognize these are observational associations.

This case-control study examined associations between adult ADHD core symptoms, cognitive flexibility, and emotional eating in 76 adults with ADHD and 69 healthy controls. The ADHD group showed significantly higher emotional eating scores (t=5.39, p=0.001) and lower cognitive flexibility scores compared to healthy controls. No specific intervention or exposure was reported, and the study compared ADHD patients to healthy controls without describing the setting or follow-up period.

For emotional eating, measured by EEQ scores, the ADHD group had significantly higher scores with a t-statistic of 5.39 and p-value of 0.001. For cognitive flexibility, measured by CCFQ total score, the ADHD group showed lower scores with a t-statistic of -5.52, though the exact p-value was not reported. The direction of both findings indicates greater emotional eating and reduced cognitive flexibility in the ADHD population.

Safety and tolerability data were not reported in this observational study. The research has several limitations: it cannot establish causation due to its case-control design, effect sizes and absolute numbers were not provided, and key methodological details including setting and follow-up duration were not reported. The study received approval number I11-798-23.

For clinical practice, this evidence suggests potential associations between ADHD symptoms, emotional eating, and cognitive flexibility in adults. However, the observational nature means these findings should not be interpreted as demonstrating causal relationships. Clinicians might consider screening for emotional eating patterns in adult ADHD patients while recognizing these associations require further investigation in prospective studies.

Researchers wanted to understand if there is a connection between ADHD symptoms, how flexibly people think, and emotional eating in adults. They studied 76 adults diagnosed with ADHD and 69 adults without ADHD (healthy controls). They asked participants about their eating habits and their ability to switch between thoughts or tasks.

The study found that the group of adults with ADHD reported significantly higher scores for emotional eating. This means they were more likely to eat in response to feelings like stress or sadness. The ADHD group also had lower scores on a measure of cognitive flexibility, which relates to adapting thinking to new situations.

This research shows an association, or link, between these factors in adults with ADHD. However, it was a case-control study, which is observational. This means it can show things are connected, but it cannot prove that ADHD symptoms cause emotional eating or reduced flexibility. The study did not report on safety concerns or long-term outcomes.

Readers should take from this that scientists are exploring how ADHD might relate to eating behaviors and thinking patterns. The findings highlight areas for further research, but they do not provide treatment guidance. Anyone with concerns about ADHD or eating habits should speak with their healthcare provider.

What this means for you:
Study finds a link between adult ADHD, emotional eating, and mental flexibility, but more research is needed.

Study Details

Study typeCase control
EvidenceLevel 4
PublishedApr 2026
View Original Abstract ↓
IntroductionAttention-deficit/hyperactivity disorder (ADHD) in adults often co-occurs with eating disorders (EDs), potentially through shared difficulties in emotional regulation, and executive functions. This study explored the associations between cognitive flexibility as a component of executive functions, core adult ADHD symptom dimensions and emotional eating-related eating behaviorsin adults with ADHD and healthy controls, within the framework of executive functions.MethodsThis case-control study included 76 adults with ADHD and 69 healthy controls. Participants completed the Self-Report Wender-Reimherr Adult Attention Deficit Disorder Scale (SR-WRAADDS), Emotional Eating Questionnaire (EEQ), Hospital Anxiety and Depression Scale, Cognitive Control and Flexibility Questionnaire (CCFQ), and Berg’s Card Sorting Test. Group differences were tested with t-tests, correlations with Spearman’s ρ, and hierarchical regression (Approval No: I11-798-23).ResultsThe ADHD group had significantly higher EEQ scores (t = 5.39, p =0.001). The ADHD group also showed lower CCFQ total score (t (125) = –5.52, p
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