03/02/2026
ARFID & PANS/PANDAS: Make This Part of the Eating Disorder Conversation
It’s National Eating Disorder Week, and ARFID is part of the conversation.
and PANS/PANDAS must be part of it too.
Sudden or newly worsening food restriction can meet full criteria for ARFID. Many PANS patients do. The presentation is real. The impairment is real. The medical risk is real. Approximately 50% of individuals with PANS experience restrictive eating, and nearly 17% face life-threatening complications.
Meeting criteria for ARFID does not answer the question of cause.
In PANS/PANDAS, immune-mediated inflammation can drive:
• Obsessional food fears
• Sensory intolerance
• Swallowing anxiety
• Severe restriction
The DSM requires clinicians to consider whether symptoms are better explained by a medical condition before assigning a primary eating disorder diagnosis.
If symptoms are abrupt or newly worsening, especially with OCD, anxiety, tics, regression, or functional decline, investigate.
Recognition matters. Because when ARFID is driven by PANS/PANDAS, treatment looks different.
Therapy alone is often not enough.
PANS/PANDAS requires a three-pronged medical approach:
• Remove the source of inflammation
• Treat the dysregulated immune response
• Provide psychotherapeutic support as needed
Antimicrobials and immunomodulatory treatments can be not just helpful, but in some cases curative.
If we do not screen for infection-triggered neuroimmune causes, we risk delaying treatments that could stabilize a patient.
Let’s broaden the ARFID conversation.
Start here:
https://aspire.care/families-parents-caregivers/pans-eating-disorder-food-restrictions/
Download the ASPIRE toolkit. We’ll be sharing deeper education and patient stories all week.