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66 percent of children with ADHD are deficient in this core nutrient
Attention Deficit Hyperactivity Disorder (ADHD) is one of the most common neurodevelopmental conditions in Canada. According to the Canadian ADHD Resource Alliance, ADHD affects 4-6% of adults and 5-7% of children, or approximately 1.8 million Canadians (source).
But this core part of healthy development is often neglected, especially in children with ADHD: nutrition.
Research shows that 66% of children with ADHD were found to be deficient in zinc and 23% in copper (source). Zinc is needed in growth, development, and immune function (source).
Many people with ADHD experience challenges that can impact their relationship with food and nutrition:
Energy crashes and fluctuations are incredibly common with ADHD, often made worse by irregular eating patterns or blood sugar swings. Our ADHD nutrition specialists help you understand how meal timing, protein intake, and balanced nutrition can support more stable energy throughout the day. We provide practical strategies for consistent fueling that work with your ADHD brain rather than against it, including simple meal planning approaches that reduce decision fatigue.
ADHD affects executive function, which includes remembering to eat and managing sensory sensitivities around food. Many children with ADHD either hyperfocus and forget meals entirely, or experience heightened sensitivity to textures, smells, or tastes. Our specialists understand these aren’t willful behaviors but neurological differences. We help create systems and environments that support regular eating while respecting sensory needs and working with your child’s natural patterns.
While no single food is a magic solution for ADHD symptoms, certain nutrition patterns can support brain function and attention. Our ON Dietitians provide evidence-based guidance on nutrients that support cognitive function, including omega-3 fatty acids, protein for neurotransmitter production, and steady blood sugar management. We help you focus on sustainable nutrition approaches rather than restrictive “ADHD diets” that often create more stress than benefit.
ADHD medications commonly affect appetite, often suppressing hunger during the day and causing rebound hunger in the evening. Our ADHD specialists understand these medication-related eating challenges and provide practical strategies for ensuring adequate nutrition despite appetite changes. We work with you to optimize nutrition timing, address growth concerns in children, and manage evening appetite rebounds without creating additional stress around food.
Brain development and function require specific nutrients, and some research suggests people with ADHD may have different nutritional needs or deficiencies. Our dietitians provide evidence-based guidance on key nutrients for cognitive health, including iron, zinc, magnesium, and B vitamins. We help you understand when supplements might be helpful and focus on food-first approaches that support overall brain health and ADHD management without falling into the “healthy eating trap” that can make nutrition more complicated than it needs to be.
Browse local dietitians with expertise in ADHD nutrition. Each profile includes their specific areas of focus, location, and booking information.
Private practice dietitians are not covered by OHIP. However, many extended health benefit plans and insurance providers will cover a portion or all of the services provided by a Registered Dietitian (RD). Please confirm with your plan provider your maximum yearly and visit allowance.
Registered dietitians are authorized medical practitioners recognized by the Canada Revenue Agency.
If you pay out of pocket for your dietitian services, you can claim these expenses as medical expense for tax credit purposes.
A doctor’s referral is not necessary to book in with a ON Dietitian. While a referral is not needed to start your journey with us, we do appreciate connecting with your healthcare provider to coordinate care and provide a holistic and comprehensive care plan.
ADHD dietitians typically have clinical experience working in hospitals or clinics that treat patients with diagnosed and undiagnosed ADHD.
These registered dietitians (RDs) will also take part in continuing education to stay current with the latest research, treatment guidelines, and best practices in ADHD nutrition.
Here are some examples of how a dietitian can support with ADHD nutrition:
We make it easy for your to find a specialized ADHD dietitian in Ontario.
Check out the dietitians listed on this page (or jump here), click on their profiles to read more about their qualifications, experience, and services.
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