You've already tried a lot of things to support our child.
Adjusting routines. Researching approaches. Advocating at school. Learning a whole new language of assessments, accommodations, and acronyms — while also trying to get dinner on the table and everyone out the door in the morning.
If your child is neurodivergent — or you're exploring whether they might be — you may have quietly wondered at some point:
Could nutrition make any difference at all?
Not as the main thing. Just quietly, in the background, while everything else carries on.
🔍 What the research is actually looking at
Nutrition isn't the answer to ADHD or autism. No serious research claims it is.
But a small number of clinical studies have started exploring whether nutritional status may support some of the underlying systems involved in regulation, behaviour, and wellbeing — alongside everything else that matters.
These studies don't suggest supplements "treat" neurodivergence.
They ask a quieter question: when nutritional foundations are supported, do some children feel more settled or regulated — within the context of their existing care, routines, and support?
Here's what two often-cited studies explored.
Vitamin D and magnesium in children with ADHD
A randomised controlled trial published in BMC Pediatrics in 2021 looked at 66 children diagnosed with ADHD¹.
Over eight weeks:
- One group received vitamin D and magnesium
- The other received a placebo
Parents completed behavioural questionnaires before and after.
The researchers observed differences between groups in parent-reported measures related to emotional and social behaviour — including emotional regulation and peer interaction.
The authors suggested that addressing common nutrient insufficiencies may be one factor worth considering as part of a broader approach for some children.
A broad-spectrum supplement study in autism
Another study, published in BMC Pediatrics in 2011, explored the effects of a broad-spectrum vitamin and mineral supplement in 141 children and adults on the autism spectrum².
Over 12 weeks, participants received either:
- A multivitamin/mineral supplement, or
- A placebo
The researchers reported differences between groups in certain measured areas, including aspects of behaviour and social interaction.
As with the ADHD study, the authors emphasised that autism itself was not being "treated." The research explored whether nutritional support was associated with changes in specific measures.
Why this kind of research gets parents' attention
Most parents want to feel confident the basics are quietly covered — even on the days that don't go to plan because
- Eating can be limited or repetitive
- Sensory preferences shape what actually gets eaten
- Mealtimes can be harder than other families realise
Research like this doesn't offer guarantees. But it helps explain why nutrition sometimes enters the conversation around regulation, focus, and resilience — especially for children whose systems are already working hard.
Where nutrition fits (and where it doesn't)
What it can do -is support the biological systems all children rely on: the nervous system, brain function, energy, and immune health.
Think of it less as an intervention and more as groundwork. The kind of support that sits in the background while the real work — the parenting, the advocacy, the patience, the understanding — carries on.
For some families, that means focusing on food. For others, it means accepting support where food alone doesn't quite reach.
One last thing, parent to parent
If you're navigating ADHD or autism in your family, you're already doing more than most people see.
Nutrition doesn't need to become another thing to get right. Another plate to spin. Another measure of whether you're doing enough.
Sometimes it's simply about knowing that small, steady support is there in the background — even when everything else feels uncertain.
You don't have to solve it all at once.
And you don't have to do it alone.
There's a growing community of fellow saints over on Instagram — come say hello. Or leave your email and we'll drop into your inbox now and then with things worth reading.
This is general information, not medical advice. If you have questions about your child's health, your GP or a registered healthcare professional is always the right place to start.
References
1.Hemamy, M., Riahi, R., Bitarafan, V., & Shariatpanahi, M. V. (2021). The effect of vitamin D and magnesium supplementation on the mental health status of attention-deficit hyperactive children: A randomised controlled trial. BMC Pediatrics, 21, Article 178.
2. Adams, J. B., Audhya, T., McDonough-Means, S., Rubin, R. A., Quig, D., Geis, E., et al. (2011). Effect of a vitamin/mineral supplement on children and adults with autism. BMC Pediatrics, 11, Article 111.
