Phelan-McDermid Syndrome in Spanish children: gastrointestinal manifestations in relation to nutritional intake

Given the gastrointestinal symptoms observed in Spanish children with PMS, specialized nutritional supervision is required, whereby nutrition professionals educate children, parents, and caregivers on strategies such as increasing fibre and calcium/vitamin D intake, with supplementation when required, and limiting simple sugars, saturated fats, and processed meats. These interventions aim to address the identified imbalances and enhance the quality of life of individuals with PMS.