Dietary Approaches for the Management of Overweight and Obesity in Type 1 Diabetes

Although type 1 diabetes (T1D) has traditionally been considered a disease associated with a lean phenotype, it is estimated that up to 2 out of 3 people living with T1D are overweight or obese, factors linked to an increased risk of complications in these patients. The available evidence regarding nutritional strategies for weight loss in T1D is very limited, and clinical trials are needed to determine how to effectively and safely promote weight loss in this population. In recent years, low-carbohydrate diets and several intermittent fasting protocols have demonstrated efficacy in promoting weight loss both in patients with type 2 diabetes and in patients with obesity without diabetes. This study will evaluate the efficacy of moderate carbohydrate restriction, time-restricted eating, and standard calorie restriction for weight loss in adults with T1D and overweight/obesity.

NCT Number	NCT07667504
Lead Sponsor	Fundación Pública Andaluza para la Investigación de Málaga en Biomedicina y Salud
Conditions	Type 1 Diabetes (T1D), Obesity & Overweight
Enrollment	75 participants
Start Date	2026-07-02
Primary Completion	2028-07 (estimated)
Study Completion	2028-07 (estimated)
Updated on ClinicalTrials.gov	2026-07-15