Challenges in telemedicine for adult patients with drug-resistant epilepsy undergoing ketogenic diet treatment during the COVID-19 pandemic in the public healthcare system in Brazil

•Financial strain was the main impediment to following a ketogenic diet (KD).•The pandemic increased socioeconomic insecurity and access to KD-related products.•Fifty-seven percent of PWE interrupted KD treatment during the first 6 months of the pandemic.•Increased anxiety was reported in 71% of pat...

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