E-health technologies improve healthcare quality and disease management. The aim of this study was to develop a ketogenic diet management app as well as a website about this dietary treatment and to evaluate the benefits of giving caregivers access to various web materials designed for paediatric patients with refractory epilepsy. Forty families participated in the questionnaire survey, from January 2016 to March 2016. All caregivers were exposed to paper-based materials about the ketogenic diet, whereas only 22 received the app, called KetApp, and videos produced by dieticians. Caregivers with free access to web materials were more satisfied than the others with the informative material provided by the centre (p ≤ 0.001, Mann–Whitney test). Indeed, they showed a better attitude towards treatment, and they became more aware of dietary management in comparison to the control group (p ≤ 0.001). Moreover, caregivers provided with web materials were stimulated to pursue the treatment (p = 0.002) and to introduce it to their children and other people (p = 0.001). Additionally, caregivers supplied with web materials were more willing to help other families in choosing the ketogenic diet (p = 0.004). Overall, these findings indicate that web materials are beneficial for caregivers of paediatric patients with refractory epilepsy in our centres. Thus, the use of e-health applications could be a promising tool in the daily aspects of ketogenic diet management, and it is especially of value in the attempt to start or maintain the diet during the ongoing COVID-19 pandemic crisis.

In fructose 1,6 bisphosphatase (FBPase) deficiency, management aims to prevent hypoglycaemia and lactic acidosis by avoiding prolonged fasting, particularly during febrile illness. Although the need for an emergency regimen to avoid metabolic decompensation is well established at times of illness, there is uncertainty about the need for other dietary management strategies such as sucrose or fructose restriction. We assessed international differences in the dietary management of FBPase deficiency. A cross-sectional questionnaire (13 questions) was emailed to all members of the Society for the Study of Inborn Errors of Metabolism (SSIEM) and a wide database of inherited metabolic disorder dietitians. Thirty-six centres reported the dietary prescriptions of 126 patients with FBPase deficiency. Patients’ age at questionnaire completion was: 1-10y, 46% (n = 58), 11-16y, 21% (n = 27), and >16y, 33% (n = 41). Diagnostic age was: 16y, 2% (n = 2). Seventy-five per cent of centres advocated dietary restrictions. This included restriction of: high sucrose foods only (n = 7 centres, 19%); fruit and sugary foods (n = 4, 11%); fruit, vegetables and sugary foods (n = 13, 36%). Twenty-five per cent of centres (n = 9), advised no dietary restrictions when patients were well. A higher percentage of patients aged >16y rather than ≤16y were prescribed dietary restrictions: patients aged 1-10y, 67% (n = 39/58), 11-16y, 63% (n = 17/27) and >16y, 85% (n = 35/41). Patients classified as having a normal fasting tolerance increased with age from 30% in 1-10y, to 36% in 11-16y, and 58% in >16y, but it was unclear if fasting tolerance was biochemically proven. Twenty centres (56%) routinely prescribed uncooked cornstarch (UCCS) to limit overnight fasting in 47 patients regardless of their actual fasting tolerance (37%). All centres advocated an emergency regimen mainly based on glucose polymer for illness management. Although all patients were prescribed an emergency regimen for illness, use of sucrose and fructose restricted diets with UCCS supplementation varied widely. Restrictions did not relax with age. International guidelines are necessary to help direct future dietary management of FBPase deficiency.

Background/Objectives: Hereditary fructose intolerance (HFI) is a rare autosomal recessive metabolic disorder caused by variants in the ALDOB gene, resulting in aldolase B deficiency. Symptoms occur after the ingestion of fructose, sucrose, or sorbitol, leading to metabolic toxicity. Management is exclusively dietary, but clinical practice remains highly variable. This survey aimed to investigate current Italian dietary management practices for patients with HFI. Methods: A cross-sectional centre-level survey was conducted using a 29-item questionnaire distributed to metabolic dietitians within the Italian Society for the Study of Inherited Metabolic Diseases network between April and May 2026. Results: Data from 27 dietitians across 15 Italian inherited metabolic disease centres were analysed. Over half of the centres (53.3%) provided care for both paediatric and adult patients, and all centres (100%) supplied structured educational materials for the fructose-, sucrose-, and sorbitol-restricted diet. Marked heterogeneity was observed in dietary practices, particularly in the classification of sugars and sweeteners, recommendations for cereal-based products, and fibre supplementation strategies. Cereal-based dietary guidance was provided by 10/15 centres (66.7%), ranging from no specific recommendations (5/15, 33.3%) to a preference for refined grains (7/15, 46.7%) or fibre-based restrictions (2/15, 13.3%). With regard to sugars and sweeteners, consensus was observed only for maltitol and sorbitol, which were classified as prohibited by all centres (15/15, 100%). Mannitol and isomalt were prohibited in 14/15 centres (93.3%). All other compounds showed variable recommendations across centres, including xylitol (prohibited 46.7%, permitted 40.0%), erythritol (permitted 60.0%), and sucralose (prohibited 33.3%, permitted 20.0%, restricted 20.0%, unspecified 26.7%). Vitamin C (100%) and folic acid (86.6%) were the most commonly prescribed supplements. One-third (33%) of the centres required the use of fibre supplements or osmotic laxatives to manage chronic constipation, with wide variability in the specific type of fibre recommended. Conclusions: These findings highlight substantial heterogeneity in dietary management of HFI across specialised Italian centres and support the development of evidence-based, standardised nutritional guidelines to improve the consistency of care, nutritional adequacy, and patient outcomes.