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Neurodiversity: ARFID & PICA Explained

14 JANUARY 2026

In this webinar, Aaron Boysen, a Registered Dietitian from Primary Care Dietitians, shares practical strategies and advice to help you support your child's eating.

Neurodiversity: ARFID & PICA Explained

Aaron shares what ARFID (avoidant/restrictive food intake disorder) and Pica (eating non-edible items) are and how to recognise the signs and symptoms. Advice on when a child's eating behaviours require professional intervention and understand the referral pathways available to families and professionals. Plus, practical strategies for everyday support. As well as take-away evidence-based approaches that you can use to support children and young people with ARFID and Pica at mealtimes.

Your Instagram questions answered

Food regression is common in toddlers and often links to illness, teething, constipation, tiredness, growth spurts, or changes in routine. In scenarios like this, we would usually focus on lowering pressure and rebuilding predictability.

Offer regular meals and snacks and keep mealtimes calm and short. Serve the family food plus 1 to 2 safe foods so there is always something they can manage. Avoid bribing, bargaining, or chasing bites, as this can increase anxiety and refusal. Let your child decide whether and how much to eat.

Keep gentle exposure going without demands: seeing the food, touching it, or helping prep counts. Between meals, offer water and limit grazing. If the food range becomes very small, distress is high, or you are worried about growth, speak to your GP, Health Visitor, or a registered dietitian.

Children do not need ‘complete protein’ at every meal; what matters is total intake across the day. In scenarios where a child avoids typical protein foods, we would usually consider broadening the options and adding small ‘boosters’ to foods they already accept.
Protein sources to consider include milk, Greek yoghurt, cheese, eggs, beans, lentils, hummus, nut or seed butters where age appropriate and safe, tofu, fish, and meat in familiar formats. Practical boosters can include adding milk powder to porridge or yoghurt, extra cheese to pasta or omelettes, yoghurt based dips, or smoothies made with milk and yoghurt.
If you are concerned about growth, low energy, constipation, iron intake, or a very narrow food range, it is sensible to discuss this with your GP, Health Visitor, or a registered dietitian for tailored advice.

If referrals are declined due to age, it is not always because nothing can be done. Sometimes there is no locally funded service for that need at that age, which is usually a system leadership issue, not an individual clinician’s choice. In these scenarios, consider asking for the reason in writing and which pathway does cover under-fives locally. Common starting points include your Health Visitor, GP, nursery SENCO, and Community Paediatrics, who can coordinate support and re-refer if appropriate.

If feeding, communication, sensory needs, or behaviour are part of the picture, consider whether a joined-up plan is needed across services, including dietetics and Early Years support. Keep brief notes on concerns, triggers, and impact to support re-referral. Seek urgent medical advice for dehydration, frequent choking, rapid weight loss, or safety concerns.

Looking for more?

For more advice and support, download our Understanding Autism Support Pack. You can find:

  • The autism spectrum
  • The diagnostic process
  • The early signs of the condition
  • How age and gender impacts the presentation of autism
  • Strategies to support communication and relationships