top of page

Understanding Adult ADHD: Insights and Natural Interventions

An adult with ADHD in a messy office

Attention-Deficit/Hyperactivity Disorder (ADHD) is a neurodevelopmental condition commonly associated with children, but it also significantly affects adults. Approximately 4-5% of adults globally have ADHD, characterised by persistent patterns of inattention, hyperactivity, and impulsivity. While the symptoms of ADHD in children and adults can be similar, the manifestations and impacts differ due to varied life circumstances and responsibilities. I've written this article to comprehensively explore adult ADHD, compare it with childhood ADHD, and examine research-proven natural ways to manage and mitigate its effects, especially with the involvement of nutrition intervention.

Understanding ADHD in Adults

Adult ADHD often presents differently than in children. While children with ADHD may struggle with sitting still, following classroom rules, or completing homework, adults might find it challenging to manage time, meet deadlines, or sustain focus in meetings. The repercussions can be substantial, affecting career prospects, relationships, and overall quality of life.

Common symptoms in adults include:

  • Difficulty concentrating and completing tasks

  • Poor organizational skills

  • Impulsivity, such as interrupting conversations or making hasty decisions

  • Restlessness and an inability to relax

  • Forgetfulness and frequent misplacement of items

Comparisons with Childhood ADHD

ADHD in children typically involves more overt hyperactivity and behavioral issues, such as talking excessively, fidgeting, and being unable to wait for their turn. In contrast, hyperactivity in adults may manifest as feelings of restlessness rather than outward behavior.

Natural Ways to Reduce or Avoid the Effects of ADHD

1. Diet and Nutrition

  • Omega-3 Fatty Acids: Studies have shown that omega-3 fatty acids, found in fish oil, flaxseeds, and walnuts, can improve cognitive functions and reduce ADHD symptoms. A meta-analysis published in the Neuropsychopharmacology journal highlighted that omega-3 supplementation significantly improved attention and hyperactivity in children with ADHD.

  • Elimination Diets: Research has indicated that certain food additives and allergens might exacerbate ADHD symptoms. A study published in The Lancet demonstrated that a restricted elimination diet led to significant reductions in ADHD symptoms in children, suggesting potential benefits for adults as well. Examples include the Feingold Diet (elimination of artificial colours, flavours and preservatives) and the Few Foods Dier (FFD), which involves eliminating most foods then gradually reintroducing them to identify triggers.

  • Nutrient Deficiencies: Iron and Zinc: Deficiencies in these minerals can exacerbate ADHD symptoms. A balanced diet rich in lean meats, nuts, seeds, and leafy greens can help.

  • Food Sensitivities Gluten and Casein: Some individuals with ADHD may benefit from a gluten-free and casein-free diet, especially if they have sensitivities. Studies have shown mixed results, but some report behavioral improvements.

  • Artificial Food Colorings (AFCs) Synthetic Dyes: Common synthetic dyes like Red 40, Yellow 5, and Blue 1 have been linked to increased hyperactivity and attention problems. A study published in The Lancet found that artificial food colorings and sodium benzoate, a common preservative, increased hyperactivity in children. Natural Alternatives: Opt for foods colored with natural sources like beet juice, turmeric, and spirulina.

  • Preservatives: Sodium Benzoate: This preservative (also mentioned above), often found in soft drinks, sauces, and packaged foods, has been associated with hyperactivity. Reducing intake can help manage ADHD symptoms. Butylated Hydroxyanisole (BHA) and Butylated Hydroxytoluene (BHT): These preservatives are found in snacks, cereals, and other processed foods. Studies suggest they may negatively affect behavior in individuals with ADHD.

  • Artificial Sweeteners: Aspartame: While research is mixed, some studies indicate that aspartame, found in diet sodas and sugar-free products, may exacerbate ADHD symptoms in sensitive individuals. Sucralose and Saccharin: These artificial sweeteners can also impact behavior and cognitive function, making it wise to avoid them.

  • Flavor Enhancers: Monosodium Glutamate (MSG): Often found in savory snacks, instant noodles, and restaurant foods, MSG can overstimulate the brain, potentially worsening ADHD symptoms.

  • Sugary Foods and Drinks Refined Sugars: High sugar intake can cause blood sugar spikes and crashes, leading to increased hyperactivity and impulsivity. Foods like candy, pastries, and sugary cereals should be limited. Sugary Beverages: Sodas, energy drinks, and even some fruit juices can contribute to hyperactivity and attention issues.

  • High-Caffeine Foods and Drinks Caffeinated Beverages: While some studies suggest caffeine can help with focus, excessive caffeine can lead to anxiety, restlessness, and sleep disturbances, exacerbating ADHD symptoms. Limit intake of coffee, energy drinks, and caffeinated teas. Chocolate: Contains both sugar and caffeine, which can negatively impact behavior and concentration.

  • Processed Foods Junk Food: Fast food, chips, and processed snacks often contain a mix of artificial additives, unhealthy fats, and refined sugars, all of which can worsen ADHD symptoms. Packaged Meals: Ready-made meals can be high in preservatives, artificial colors, and flavor enhancers, which should be avoided.

2. Exercise

  • Physical Activity: Regular physical exercise has been shown to reduce ADHD symptoms by increasing the brain's dopamine and norepinephrine levels, which help with attention and behavior regulation. A study in Medicine & Science in Sports & Exercise found that physical activity improved executive functioning and attention in both children and adults with ADHD.

  • Book in for your Free Personal Training Consultation today by clicking here, whether you'd like to train in person 1-1 in the gym, or through my remote Online Personal Training.

3. Mindfulness and Meditation

  • Mindfulness Training: Mindfulness practices, such as meditation, can help reduce stress and improve focus. A study in the Journal of Attention Disorders found that mindfulness meditation significantly decreased ADHD symptoms and improved emotional regulation in adults .

4. Behavioral Therapy

  • Cognitive Behavioral Therapy (CBT): CBT has been proven effective for managing ADHD symptoms in adults by helping them develop coping strategies, improve time management, and enhance organizational skills. According to a study published in The American Journal of Psychiatry, CBT led to significant improvements in ADHD symptoms and overall functioning in adults .

5. Sleep Hygiene

  • Improving Sleep: Poor sleep can exacerbate ADHD symptoms. Establishing good sleep hygiene practices, such as maintaining a regular sleep schedule, creating a restful environment, and avoiding stimulants before bedtime, can help mitigate symptoms. A study in the *Journal of Clinical Sleep Medicine* found that improving sleep quality led to a reduction in ADHD symptoms in both children and adults .

6. Supplements (including food alternatives)

  • Omega-3 Fatty Acids Omega-3 fatty acids, mentioned earlier in my article, particularly EPA and DHA, are crucial for brain health and have been shown to improve attention, focus, and behavior in individuals with ADHD. Natural sources include fatty fish like salmon, mackerel, and sardines, as well as flaxseeds, chia seeds, walnuts, and flaxseed oil. Incorporating these foods into your diet can help boost omega-3 intake naturally.

  • Zinc plays a vital role in neurotransmitter function and overall brain health. Deficiency in zinc has been associated with worsening ADHD symptoms, such as inattention and hyperactivity. Natural food sources rich in zinc include meat (beef, lamb), poultry (chicken, turkey), seafood (oysters, crab), legumes (chickpeas, lentils), and seeds and nuts (pumpkin seeds, cashews).

  • Magnesium is essential for numerous biochemical reactions in the body, including those involved in brain function. Low levels of magnesium have been linked to increased hyperactivity and irritability in individuals with ADHD. Foods high in magnesium include dark leafy greens (spinach, kale), nuts and seeds (almonds, sunflower seeds), whole grains (brown rice, quinoa), and legumes (black beans, lentils).

  • Iron is critical for the production of dopamine, a neurotransmitter that regulates attention and behavior. Iron deficiency can exacerbate ADHD symptoms. Rich dietary sources of iron include red meat (beef, lamb), poultry (chicken, turkey), seafood (clams, sardines), beans (kidney beans, lentils), and dark leafy greens (spinach, collard greens).

  • Vitamin B6 is involved in the synthesis of neurotransmitters, including serotonin and dopamine, which are important for mood and cognitive function. Adequate levels of vitamin B6 can help improve symptoms of ADHD. Natural sources include poultry (chicken, turkey), fish (salmon, tuna), potatoes, bananas, and chickpeas.

  • Vitamin D is essential for brain development and function. Low levels of vitamin D have been linked to increased severity of ADHD symptoms. Natural sources include fatty fish (salmon, mackerel), fortified foods (milk, orange juice), egg yolks, and exposure to sunlight, which stimulates vitamin D production in the skin.

  • Probiotics support gut health, which is increasingly being recognized as important for brain function and behavior. A healthy gut microbiome can positively influence ADHD symptoms. Natural probiotic-rich foods include yogurt, kefir, sauerkraut, kimchi, and other fermented foods.

Research and Future Directions

Ongoing research continues to explore the underlying causes of ADHD and effective management strategies. Emerging studies are examining the role of gut health and its connection to ADHD, suggesting that probiotics and a balanced diet may offer new avenues for treatment. Additionally, advancements in neurofeedback therapy, which involves training individuals to regulate their brain activity, show promise in reducing ADHD symptoms.


While ADHD presents challenges, both children and adults can benefit from various natural interventions supported by research. By incorporating dietary changes, regular exercise, mindfulness practices, behavioral therapy, and improved sleep habits, individuals with ADHD can experience significant improvements in their symptoms and overall quality of life. As research continues to evolve, new and innovative strategies will likely emerge, offering hope and improved outcomes for those affected by ADHD.


1. Neuropsychopharmacology: "Omega-3 Fatty Acids in ADHD"

2. The Lancet: "The Effects of Elimination Diets on ADHD Symptoms"

3. Medicine & Science in Sports & Exercise: "Physical Activity and ADHD"

4. Journal of Attention Disorders: "Mindfulness Meditation and ADHD"

5. The American Journal of Psychiatry: "Cognitive Behavioral Therapy for ADHD in Adults"

6. Journal of Clinical Sleep Medicine: "Sleep Quality and ADHD Symptoms"

8 views0 comments

Recent Posts

See All


bottom of page