The human brain requires a steady source of nutrients for optimal functioning. Key nutrients like omega-3 fatty acids, antioxidants, and B vitamins provide you with energy to support the ability to focus, manage emotions, and stay calm during adverse situations. They allow for smoother communication among your brain cells, thereby promoting more balanced moods, improving your attention, and reducing impulsive behavior.
But what happens if you or your child is struggling with Attention-Deficit/Hyperactivity Disorder (ADHD)? How exactly does the diet affect an ADHD brain? Are certain foods considered extremely unhealthy for children or adults with ADHD? What nutritional approaches may contribute to improvements in ADHD symptoms?
Those are the questions we’ll address as authentically as possible in this guide. Whether you’re a parent worried about how your child’s ADHD symptoms are affected by their eating habits or an expert engaged in ADHD and diet research, you’re about to gain some valuable insights.
How Does Diet Affect the ADHD Brain?
The food you or your child eats may support or harm the neurotransmitter function, correct or worsen nutrient deficiencies, and reduce or increase inflammation. Let’s take a detailed look at the implications of diet for autism and ADHD in children and adults:
Dopamine Deficiency Caused by Certain Foods
The underlying reason why individuals with ADHD and autism have difficulty focusing and controlling impulsive behavior is the lack of the “feel-good” chemical, dopamine, which is crucial for sustained focus, motivation, and anticipation of reward. The amino acid that produces dopamine is tyrosine, which itself requires protein-rich foods to process. Foods high in sugar, saturated fat, and highly processed foods interfere with this mechanism, thereby hindering dopamine production and damaging the brain’s reward pathways.
Research suggests that sugar-sweetened beverages and other sources of high-sugar consumption may exacerbate irritability, hyperactivity, and inattention among children. The study explains that although excessive sugar may cause a rapid boost in dopamine and thus help improve focus for a short period, the energy crashes that follow end up worsening their ADHD symptoms.
However, it’s important to clarify here that while research reports an increase in hyperactivity after high sugar consumption (which may be more accelerated for individuals with ADHD), sugar intake itself does not cause ADHD. According to Dr. Stephanie Ruggiero, a Psychologist at the ADHD and Behavior Disorders Center, sugar and/or caffeine may intensify hyperactivity symptoms among those who already have ADHD, but they do not cause ADHD in those who don’t have the condition.
Coming back to the earlier discussion, low levels of dopamine or its inefficient use among kids and adults with ADHD lead low levels of motivation, so even initiating a task may be perceived as a challenge. Once they do begin something, they will easily get distracted, making it extremely difficult to complete the job.
Impulsivity issues stemming from dopamine deficiency can arise in various ways. While watching TV, you may be triggered by a flashy Hamburger ad and may not be able to resist ordering it, even if you were supposed to eat something that was cooked at home.
Similarly, you may find yourself interrupting others too often during conversations without even realizing it. The person you’re speaking with may easily be offended, unless they’re aware of your condition. In other cases, impulsive behavior could mean making impulsive purchases, driving recklessly, having emotional swings, and even risky decisions that may harm you or others.
Inflammation and Gut Health
Your brain function is connected to your digestive health via a two-way communication system called the gut-brain axis. According to Dr. Miriam Mikicki, GP and Functional Medicine Practitioner at health.miro in London, UK, the ADHD condition is often accompanied by imbalances in gut microbiota. She explains that a gut bacteria imbalance is not only linked to increased inflammation, but it has also been shown to adversely affect cognitive function.
Therefore, an intake of foods that harm your gut health and cause inflammation also automatically hurt emotional regulation and cause poor focus. Dietary patterns and components that are harmful for gut health include (but are not limited to):
-
Ultra-processed foods
-
Alcohol (binge consumption patterns)
-
High saturated fat
-
Heme-rich diets without sufficient plant balance
-
Low-fiber diet patterns
-
Rapidly absorbed starches and refined sugars.
The above-listed dietary patterns increase gut permeability and reduce the beneficial Short-chain fatty acids (SCFAs)-producing species.
Now that you’ve gained a fair understanding of how diet affects the ADHD brain, it’s time to alert you to some of the foods that are considered worst for adults and children with ADHD.
The Worst Foods for ADHD Symptoms
If your child has ADHD, you should be more careful about what they’re consuming on a daily basis. Some of the foods that are considered not just bad but worst for kids and adults with ADHD include:
Carbonated Soft Drink (CSDs)
Children, in particular, love soda, but unfortunately, these fizzy drinks contain ingredients like caffeine and high-fructose corn syrup. These constituents are known to cause easy distractibility and hyperactivity.
Research establishes a strong, consistent relationship between soft drink consumption and behavioral issues among children. A study found that 5-year-olds who frequently drank soda demonstrated mood swings and higher aggression scores. They were more likely to attack other people, get into fights, and destroy other people’s belongings, according to the findings.
Sweetened Cereals and Other Ultra-Processed Foods (UPFs)
According to the CDC, UPFs make up about 55% to 57% of the average American’s total calorie intake every day. These include commonly consumed items like sweetened cereals, packaged brown bread, and chicken nuggets. Since their ingredient lists feature stabilizers, emulsifiers, and other artificial additives, UPF-heavy diets are shown to worsen ADHD symptoms among adults and children.
As discussed earlier, UPFs promote inflammation, reduce the beneficial gut microbes, and increase potentially harmful gut bacteria. These issues collaboratively harm your gut health, which is closely linked to ADHD.
Deep Fried Foods
Deep-fried foods like doughnuts, French fries, fried chicken, funnel cakes, corn dogs, and deep-fried Oreos are high in saturated fats. According to a specialist gastroenterology dietitian, Dr. Sammie Gill, saturated fats not only raise ‘bad’ LDL cholesterol but also stimulate fat tissue inflammation, causing immune cells to release pro-inflammatory compounds.
Children and adults with ADHD already typically have elevated systemic inflammation levels. Their symptoms are further worsened by inflammation triggered by the consumption of deep-fried foods.
While these were some harmful foods to avoid, let’s now explore how to navigate your diet instead if you or your child has ADHD:
Nutrition Tips for People With ADHD
For anyone with ADHD, the following dietary guidelines can be of great help:
Replace Emotional Eating With Creative Expression
ADHD Adults struggling with emotional regulation often turn to food as a coping mechanism during stressful situations. If this sounds like you, it’s important to understand that although food can momentarily provide sensory relief, impulsive eating and overeating may become inevitable when you’re stressed out because negative emotions make you more susceptible to mindless eating.
Instead of considering food when you’re angry or anxious, breathe deeply for five minutes. Then, express your emotions in a creative way, depending on what interests you. For example, you can release your thoughts through writing, drawing, singing, martial arts, and so on. If you have a close relationship with someone who also cares for you, talk to them about your bad day.
However, controlling yourself when emotions are intense isn’t easy. You need to set up a list of natural ways to help manage ADHD beforehand that you can turn to during such situations.
Pay Attention to the Labels During Grocery Shopping
Unhealthy foods don’t enter our diet on their own. A lot of them end up in our homes because we don’t check the ingredients before stuffing them in the cart. Shop smart and let the item labels guide you on what you’re going to be putting in your body. Try to target foods rich in fiber and protein, such as eggs, fruits and vegetables, turkey, boneless chicken breasts, yogurt, olive oil, nuts, and fish.
Since the keto diet is shown to alleviate the symptoms of ADHD, consider items that align with it. To learn more about the keto diet and ADHD, study this guide.
On the other hand, if you find that certain items are high in fat, sodium, or sugar, put them back on the shelf. Avoid picking soda, not even diet soda, which may not have sugar, but certainly includes artificial sweeteners that trigger more eating. Even worse are the highly caloric alcoholic beverages that reduce our inhibitions, resulting in increased impulsive decisions and actions.
Consult an ADHD Nutrition Expert
When deciding which foods to pick and which ones to avoid, nothing beats professional advice from licensed nutritionists. You want a dietician with experience advising individuals with ADHD. Given the strong links between ADHD and gut health, reaching out to a gut health nutritionist should particularly be of great help. Ask them about the type of foods to stock in your pantry.
Conclusion
To sum it up, your diet plays a crucial role in managing your ADHD symptoms. Just as the right dietary choices rich in nutrition alleviate emotional challenges, improve impulse control, and let you focus, the wrong choices like ultra-processed foods, deep-fried foods, and soft drinks tend to wreak havoc in the ADHD brain.
Following the above-explained tips should help you or your child set up a nutrition-rich, yet non-restrictive diet to manage ADHD symptoms.