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Is ADHD in Kids Connected to Gut Health?

Published June 27, 2024

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Attention Deficit Hyperactivity Disorder (ADHD) is a neurodevelopmental disorder characterized by inattention, hyperactivity, and impulsivity, affecting many kiddos worldwide. Recent scientific research has explored potential connections between ADHD symptoms and gut health, highlighting new findings that could impact how ADHD is understood and managed. In this blog, we'll review what the current studies tell us about the connection between ADHD and gut health in kids. 

What Causes ADHD in Kids?

ADHD can significantly impact a kiddo's daily life, including their academic performance, social interactions, and overall well-being. While the exact causes of ADHD are complex and multifaceted, researchers have increasingly focused on the role of gut health and its potential influence on neurological functioning and behavior.

The Gut-Brain Connection

The gut-brain axis refers to the bidirectional communication network between the gastrointestinal tract and the brain. Emerging studies suggest that disturbances in gut microbiota (the community of microorganisms residing in the gut) may influence brain function and behavior, potentially contributing to ADHD symptoms.

Research on Gut Health and ADHD

  1. Microbiota Composition: Research published inPediatrics has shown that kiddos with ADHD tend to have alterations in their gut microbiota composition compared to neurotypical peers. These differences may impact neurotransmitter production and inflammation levels, potentially influencing ADHD symptoms.

  2. Inflammation and Immune Responses: Studies inFrontiers in Psychiatry have explored the role of gut inflammation and immune responses in ADHD. Elevated levels of inflammatory markers in the gut have been linked to increased ADHD symptoms, suggesting a possible link between gut health and neuroinflammation.

  3. Dietary Factors: Diets rich in fiber, probiotics (beneficial bacteria), and omega-3 fatty acids have shown potential benefits in reducing ADHD symptoms by promoting a healthier gut environment.

  4. Gut Permeability: Research inCurrent Psychiatry Reports has examined the concept of gut permeability (leaky gut) in relation to ADHD. Increased gut permeability may allow harmful substances to enter the bloodstream, potentially affecting brain function and exacerbating ADHD symptoms.

  5. Treatment Approaches: Clinical trials, such as those discussed inNutritional Neuroscience, have explored the use of probiotics and dietary interventions to improve ADHD symptoms. These studies suggest that targeting gut health through specific dietary changes or probiotic supplements may complement traditional ADHD treatments.


Scientific research suggests a potential connection between gut health and ADHD in kiddos, with alterations in gut microbiota, inflammation levels, and dietary factors playing significant roles. Further studies are needed to fully understand these relationships and develop targeted interventions that could complement existing ADHD treatments.


  1. Pediatrics: "Gut Microbiota Alterations in ADHD" (2017)
  2. Frontiers in Psychiatry: "Gut Inflammation and ADHD" (2019)
  3. Journal of Attention Disorders: "Dietary Factors and ADHD Symptoms" (2018)
  4. Current Psychiatry Reports: "Gut Permeability and ADHD" (2016)
  5. Nutritional Neuroscience: "Probiotics in ADHD Treatment" (2020)