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Nutrients ; 12(9)2020 Sep 10.
Artículo en Inglés | MEDLINE | ID: mdl-32927753

RESUMEN

This study investigated the preload effect of the medium and high glycemic index (GI) potato, as well as the combination of partially hydrolyzed guar gum (HG) and potato, when ingested prior to a rice meal, on the iso-carbohydrate basis. In a randomized crossover trial, 17 healthy female subjects consumed (1) rice; (2) co-ingestion of highly cooked potato (HP), and rice (HP + R); (3) co-ingestion of minimally cooked potato (MP) and rice (MP + R); (4) preload HP prior to rice meal (PHP + R); (5) preload MP prior to rice meal (PMP + R); (6) co-ingestion of partially hydrolyzed guar gum (HG), HP and rice (HG + HP + R); (7) preload HG prior to co-ingestion of HP and rice (PHG + HP + R); (8) co-preload of HG and HP prior to rice (PHG + PHP + R); and (9) preload of HP prior to co-ingestion of HG and rice (PHP + HG + R). Postprandial glycemic response (GR) tests and subjective satiety tests were conducted for each test food. Cooked potato as a preload to a rice meal could significantly cut the acute postprandial glycemic excursion by around 1.0 mmol/L, irrespective of the GI of the preload. Co-preload of partial hydrolyzed guar gum and highly cooked potato (PHG + PHP + R) resulted in improved acute GR in terms of peak glucose value and glycemic excursion compared with either HG preload or HP preload. All the meals with preload showed comparable or improved self-reported satiety. Within an equicarbohydrate exchange framework, both high-GI and medium-GI potato preload decreased the postprandial glycemic excursion in young healthy female subjects. The combination of HG and HP as double preload resulted in better GR than both single HG or HP preload did.


Asunto(s)
Carbohidratos de la Dieta/administración & dosificación , Ingestión de Alimentos/fisiología , Carga Glucémica/fisiología , Periodo Posprandial/fisiología , Solanum tuberosum , Adolescente , Glucemia/fisiología , Estudios Cruzados , Femenino , Galactanos/administración & dosificación , Galactanos/química , Índice Glucémico , Voluntarios Sanos , Humanos , Hidrólisis , Mananos/administración & dosificación , Mananos/química , Oryza , Gomas de Plantas/administración & dosificación , Gomas de Plantas/química , Saciedad/fisiología , Adulto Joven
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