The food we eat has an impact on Attention Deficit Hyperactivity Disorder (ADHD) by influencing brain chemistry, neurotransmitter production, and energy levels, all of which play a role in attention, mood, and impulse control.
Diets rich in protein, complex carbs, and healthy fats have been linked to better brain functioning: increased attention span, stronger memory, and lower anxiety. Poor nutrition and processed foods have been associated with worsened cognitive symptoms by increasing inflammation and causing blood sugar spikes [1].
Although nutrition is not a sole treatment for ADHD, having a balanced, whole-food diet is important for brain health and can go a long way in managing symptoms of ADHD.
What is an ADHD Diet?
There is no one specific set of rules for an “ADHD diet,” and they can look different depending on your individual needs and symptoms. Ideally, your dietary choices and eating habits should help your brain function better and reduce the intensity of ADHD symptoms.
If you’re taking an ADHD medication and still struggling to focus, sleep, or sit still, your diet could also be to blame. Different ways to approach a diet that supports symptoms of ADHD include [1][2]:
- General Nutrition: Focusing on what foods you eat and how they impact your symptoms (whether they get better or worse). This might involve adding new foods to your diet or eliminating certain things.
- Supplementation Diet: In this plan, you add supplements such as vitamins and minerals that could help make up for the deficiencies of what you’re not getting from your standard diet. It’s best to speak with a medical professional who can help you decide if supplements are right for you and to ensure they don’t interact with any medications you are currently taking.
- Elimination Diet: This includes removing certain foods or ingredients you believe might be triggering your ADHD symptoms, such as high corn syrup or certain food dyes.
- Eating Habits and Patterns: Our daily routines with food can also play a role in ADHD symptoms and energy levels. Try to eat at consistent times every day; do not eat within 1-2 hours before bed; and if you struggle with appetite, eat smaller, digestible meals or nutritious snacks throughout the day rather than just 1 to 2 big meals.
Key Nutrients For The Brain
There is little research on what specifically an “ADHD diet” is. However, many mental health experts and nutritional psychiatrists agree that nutrients that are good for the brain are likely to support ADHD. A few key nutrients linked to improved brain health include [2]:
- Complex Carbohydrates: Your body converts these into glucose and uses them for energy. These are essential for healthy cognitive functioning and maintaining physical energy levels. Eat fruits and vegetables high in complex carbs, including oranges, tangerines, pears, grapefruits, and apples.
- Omega–3s: These are polyunsaturated fatty acids that build cell membranes in the brain to reduce inflammation and support healthy blood flow, leading to improved memory, learning, and cognitive processing. Low levels of omega-3s have been linked to poor memory and higher rates of depression. These can be found in salmon, tuna, olive oil, and walnuts.
- High-Protein Diets: These may improve medication responsiveness and support overall ADHD symptoms and brain health, such as energy, focus, memory, and attention span.
Top 5 Best Foods to Eat with ADHD
Here are five meal ideas that combine complex carbs, omega-3s, and high protein to support brain health and help manage ADHD symptoms.
- Salmon with quinoa
- Greek Yogurt with oats and berries
- Mixed Berry Salad with grilled chicken
- Chili with lean ground beef, black beans, and corn
- Egg and Spinach Omelette with whole grain toast
Foods to Avoid with ADHD
Foods to avoid with ADHD include highly processed foods, simple carbs, and caffeinated drinks. These have been linked to poorer brain functioning and can contribute to symptoms such as restlessness, trouble sleeping or focusing, and anxiety.
Sugary Foods: According to the Dietary Guidelines for Americans, children and adults should limit sugars to less than 10% of their daily calorie intake [3]. Examples of sugary foods to avoid include:
- Drinks such as soda, concentrated fruit juices, iced lattes, or energy drinks such as Red Bull.
- Candies, cake, cookies, brownies.
- Processed or fast foods that come in a bag or box (e.g., frozen pizza, McDonald’s).
Simple Carbs: Simple carbs found in fruits and vegetables are not bad, but many simple carbs, such as those found in corn syrup or white bread, don’t hold as high a nutritional value and are not quickly absorbed in the body. They tend to spike blood sugar, leading to mental fatigue and lowered cognitive functioning [2].
Examples of foods high in simple carbs include:
- Corn syrup
- Table sugar
- White rice
- White bread
- Potatoes
Saturated Fats: Unhealthy fats such as saturated fats can increase the risk of heart disease and lead to inflammation in the brain, which can trigger more intense symptoms of ADHD.
The American Heart Association recommends keeping saturated fat intake between 5% and 6% of your daily calories [4]. Foods that are high in saturated fats to avoid include:
- Greasy or fried foods cooked in butter, lard, or palm oil. Consider swapping out for olive or avocado oil.
- Dairy products high in sugar, such as yogurt, cheese, or whole milk.
- Certain meats, such as pork, beef, and lamb, depending on the cut.
Caffeine is generally recommended to avoid if you have ADHD, especially if you are taking stimulant medication. Stimulants and caffeine combined can make it harder to fall asleep and increase physical symptoms of anxiety or agitation, such as an increased heart rate, sweating, and the shakes. Consider limiting coffee or tea, or looking for a caffeine-free version.
Nutritional Supplements for ADHD
Some nutritional experts recommend that those with ADHD take vitamin and mineral supplements, although others say it is unnecessary if you already eat a balanced diet. There’s no clinical evidence that vitamin or mineral supplements can treat ADHD, but many report that some supplements, such as Omega 3s and Magnesium, can help with symptoms such as inability to focus, restlessness, and sleep disturbance.
It’s important to speak with your doctor and make sure that supplements are the right fit to support your symptoms and won’t interact with any medications you are currently prescribed:
- Omega-3 Fatty Acids: One study of children with ADHD found reduced impulsivity after adding more omega-3s to their diet for 8 weeks [5].
- Iron: Iron deficiencies can increase or worsen symptoms of ADHD. Iron supplements combined with zinc have been found to improve symptoms in some studies [6].
- Magnesium: Magnesium may help regulate neurotransmitters such as GABA and serotonin, calming the nervous system and leading to lower anxiety and better sleep. These can help patients with ADHD better manage their symptoms.
- Vitamin D: Small studies show that targeted Vitamin D supplements, along with prescription medication, had significant improvements in hyperactivity, inattention, and behavior scores [7].
The Functional Medicine Approach to ADHD: Nourish Your Brain with Nutrition-Focused Treatment
Whether through therapy, medication, or holistic practices, recovery is within reach. Harper Clinic Utah understands the complex nature of neurodivergent disorders and offers comprehensive ADHD treatment. We are a functional medicine clinic focused on addressing the roots of mental health challenges and improving brain health with targeted nutrition treatments.
Our team of clinical psychiatrists and experienced therapists are here to help you effectively manage ADHD. Healing starts with taking the first step. Contact our consultation team today.
Sources
[1] Reissmann, A. et al. (2023). Nutrition in the Management of ADHD: A Review of Recent Research. Current nutrition reports, 12(3), 383–394.
[2] UCLA Health. 2025. Foods that feed your ADHD mind.
[3] Office of Disease Prevention and Health Promotion. 2021. Cut Down on Added Sugars.
[4] American Heart Association. 2025 Guidelines. Saturated Fat.
[5] Blumenfeld Olivares, J. et al. (2022). Impulsiveness in children with attention-deficit/hyperactivity disorder after an 8-week intervention with the Mediterranean diet and/or omega-3 fatty acids: a randomised clinical trial. Neurologia, 37(7), 513–523.
[6] Bhugra, D. et al. (2014). Higher prevalence of iron deficiency as strong predictor of attention deficit hyperactivity disorder in children. Annals of medical and health sciences research, 4 (Suppl 3), S291–S297.
[7] Gan, J. et al. 2019. The Effect of Vitamin D Supplementation on Attention-Deficit/Hyperactivity Disorder: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. Journal of Children and Adolescent Psychopharmacology.