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Asia Pac J Clin Nutr ; 33(2): 200-212, 2024 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-38794980

RESUMEN

BACKGROUND AND OBJECTIVES: Very-low calorie diets (VLCD) achieve weight loss and remission of Type 2 diabetes (T2DM), but efficacy and acceptability in non-European populations is less clear. This feasibility study examines the impact of 10% weight loss through VLCD on metabolic and body composition outcomes in a multi-ethnic cohort of Aotearoa New Zealand (AoNZ) men with prediabetes/early T2DM, and VLCD tolerability/cultural acceptability. METHODS AND STUDY DESIGN: Participants followed a VLCD intervention (mean energy 3033kJ/day) until achievement of 10% weight loss. An oral glucose tolerance test (OGTT), hyperinsulinaemic isoglycaemic clamp with stable isotopes, hood calorimetry and dual-energy Xray absorptiometry (DXA) were undertaken before and after intervention. Qualitative data on VLCD tolerability/cultural acceptability were collected. RESULTS: Fifteen participants were enrolled; nine achieved 10% weight loss. In this group, mean HbA1c reduced by 4.8mmol/mol (2.4-7.1) and reverted to normoglycaemia in n=5/9; mean body weight reduced by 12.0 kg (11.0-13.1) and whole-body glucose disposal improved by 1.5 mg kgFFM-1 min-1 (0.7-2.2). Blood pressure and fasting triglycerides improved significantly. No changes in hepatic glu-cose metabolism were found. In all participants who attended completion testing, HbA1c reduced by 3.4mmol/mol (SD 3.5) and total weight by 9.0kg (SD 5.7). The intervention was highly tolerable/culturally acceptable however challenges with fulfilment of cultural obligations were described. CONCLUSIONS: Results support VLCD use in AoNZ however further work to investigate ethnic differences in physiological response to VLCDs and to optimise protocols for multi-ethnic populations are required.


Asunto(s)
Restricción Calórica , Diabetes Mellitus Tipo 2 , Estudios de Factibilidad , Estado Prediabético , Humanos , Diabetes Mellitus Tipo 2/dietoterapia , Masculino , Estado Prediabético/dietoterapia , Estado Prediabético/terapia , Nueva Zelanda , Persona de Mediana Edad , Restricción Calórica/métodos , Estudios de Cohortes , Adulto , Anciano , Composición Corporal , Pérdida de Peso , Glucemia
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