Mastering Adult ADHD: Integrating Nutrition and Personalised Care

Nutrition approaches backed by research to improve concentration, reduce mental fatigue and support overall brain health in ADHD.

Q1. What does ADHD look like in adults?

Adult ADHD presents differently than childhood ADHD. While children often show hyperactivity, adults typically experience:

• Chronic disorganisation

• Difficulty completing tasks

• Losing track of time

• Forgetfulness

• Mental restlessness rather than physical hyperactivity

• Irritability and emotional dysregulation (1)

These symptoms can significantly affect work performance, relationships, decision-making and day-to-day functioning. Adults often describe feeling constantly overwhelmed or unable to keep up with daily responsibilities.

Q2. Why do adults develop or continue to experience ADHD symptoms?

Research identifies several contributing factors: ADHD has a strong hereditary component and often runs in families. Genes influence brain regions responsible for attention and executive functioning (2,3). Dopamine and norepinephrine, key neurotransmitters involved in focus and impulse control, function differently in individuals with ADHD (2). Studies show differences in the prefrontal cortex and other regions responsible for planning, organisation and self-regulation (4). Chronic stress, trauma and adverse life experiences can worsen symptoms by affecting emotional regulation and cognitive performance (4). Anxiety, depression and substance use disorders frequently occur alongside ADHD and can increase symptom severity (5).

Q3. How are gut health and neuroinflammation linked to ADHD?

Current research highlights the connection between the gut, brain and inflammatory pathways.

Inflammation in the brain can disrupt neurotransmitter activity and impair executive function, contributing to inattention, impulsivity and emotional instability (6). The gut microbiome influences neurotransmitter production, immune function and inflammation. Imbalances in gut bacteria may worsen mood, behaviour and cognitive symptoms associated with ADHD (6). Addressing gut health and reducing inflammation can support improved focus, emotional regulation and overall wellbeing.

Q4. What tests can help identify the drivers behind ADHD symptoms?

FerFit Dietetics & Nutrition uses a personalised Life-Force Testing approach that may include the following: Assesses gut bacteria balance. Imbalances in the gut can influence inflammation and neurotransmitter production, affecting ADHD symptoms (6). Identifies deficiencies in nutrients such as iron, zinc, magnesium, B vitamins and omega-3 fatty acids, all of which play roles in cognitive function and mood regulation (7). Detects variations in genes related to nutrient metabolism, neurotransmitter pathways and medication response. This helps tailor nutritional and medical treatments (3). Identifies sensitivities to additives, food chemicals and certain ingredients. Artificial colours, preservatives and high-sugar foods may worsen hyperactivity and attention difficulties in some individuals (8). Evaluates exposure to endocrine disruptors and toxins such as BPA, phthalates and heavy metals, which have been associated with ADHD symptoms and impaired cognitive health (9).

Q5. Do I still need to see a psychologist or psychiatrist?

Yes. A formal ADHD diagnosis must be completed by a psychologist or psychiatrist. Neuropsychological assessments provide detailed insights into attention, executive function, memory and processing speed. Dietetic care complements psychological and medical treatment by targeting nutritional, biochemical and lifestyle factors that affect brain function.

Q6. What is the most effective way to manage adult ADHD?

The most successful treatment plans are comprehensive and individualised. They typically include:

• Medication when clinically indicated

• Skills training in organisation, time management and task planning

• Nutrition and gut-focused interventions

• Physical activity

• Consistent routines and sleep hygiene

• Psychological therapies such as CBT

• Support from family members, partners or colleagues

Treatment is most effective when all components are integrated and consistently applied.

Q7. Can nutrition and gut health improve ADHD symptoms?

Yes. Nutrition is a recognised evidence-based support for ADHD management.

Correcting nutrient deficiencies, improving gut microbiome diversity and reducing neuroinflammation can support:

• Improved attention

• Better emotional regulation

• Reduced mental fatigue

• More stable energy levels

• Enhanced cognitive performance

Nutrition does not replace medical treatment, but it significantly strengthens outcomes when included as part of a comprehensive plan.

Q8. Why choose FerFit Dietetics & Nutrition for ADHD support?

FerFit Dietetics offers a highly personalised and evidence-based approach to ADHD that addresses the underlying drivers of cognitive and emotional symptoms.

Our strengths include:

• Expertise in the interaction between brain health, gut health and neuroinflammation

• Tailored Life-Force Testing to identify individual nutrient, microbiome and genetic factors

• Holistic support that integrates physical, mental and emotional wellbeing

• Experience supporting adults with ADHD, chronic stress, metabolic conditions and complex health needs

• NDIS-registered services for eligible individuals

• A compassionate and professional treatment environment

FerFit Dietetics provides clear guidance, ongoing support and practical strategies to help individuals achieve meaningful and sustainable improvements in daily functioning.

Book a Consultation - To learn more about your unique biological drivers and begin improving your cognitive and emotional wellbeing, book a personalised consultation with FerFit Dietetics & Nutrition.

References

1. Soler-Gutiérrez, A., Pérez-González, J., & Mayas, J. (n.d.). Evidence of emotion dysregulation as a core symptom of adult ADHD: A systematic review.

2. Volkow, N. D., Wang, G., Kollins, S. H., Wigal, T. L., Newcorn, J. H., Telang, F., et al. (2009). Evaluating dopamine reward pathway in ADHD: Clinical implications. JAMA, 302(10), 1084-1091.

3. Faraone, S. V., & Larsson, H. (n.d.). Genetics of attention-deficit hyperactivity disorder.

4. Qiu, M., Ye, Z., Li, Q., Liu, G., Xie, B., & Wang, J. (2011). Changes of brain structure and function in ADHD children. Brain Topography, 24, 243-252.

5. Avery, J. D., & Barnhill, J. W. (2017). Co-occurring mental illness and substance use disorders: A guide to diagnosis and treatment. American Psychiatric Publishing.

6. Mathee, K., Cickovski, T., Deoraj, A., Stollstorff, M., & Narasimhan, G. (2020). The gut microbiome and neuropsychiatric disorders: Implications for ADHD. Journal of Medical Microbiology, 69(1), 14-24.

7. El-Sayed, R. G., Saad Alamri, E., El-Sayed, M. L., Salem Alshehri, O., Altawil, A., & Zaitone, S. (2024). Role of vitamins and nutrients in the management of ADHD: A narrative review. ScienceOpen Preprints.

8. Lange, K. W., Reissmann, A., Nakamura, Y., & Lange, K. M. (2024). Food intolerance and oligoantigenic diet in children with ADHD. Food Science and Human Wellness, 13(4), 1729-1738.

9. Moore, S., Paalanen, L., Melymuk, L., Katsonouri, A., Kolossa-Gehring, M., & Tolonen, H. (2022). The association between ADHD and environmental chemicals: A scoping review. International Journal of Environmental Research and Public Health, 19(5), 2849.