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- Title
Glycaemic Response to a Nut-Enriched Diet in Asian Chinese Adults with Normal or High Glycaemia: The Tū Ora RCT.
- Authors
Sequeira-Bisson, Ivana R.; Lu, Louise W.; Silvestre, Marta P.; Plank, Lindsay D.; Middleditch, Nikki; Acevedo-Fani, Alejandra; Parry-Strong, Amber; Hollingsworth, Kieren G.; Tups, Alexander; Miles-Chan, Jennifer L.; Krebs, Jeremy D.; Foster, Meika; Poppitt, Sally D.
- Abstract
Nut-based products are a good source of high-quality plant protein in addition to monoand polyunsaturated fatty acids, and may aid low-glycaemic dietary strategies important for the prevention of type 2 diabetes (T2D). In particular, they may be advantageous in populations susceptible to dysglycaemia, such as Asian Chinese. The present study aimed to compare effects of a higher-protein nut bar (HP-NB, also higher in total fibre and unsaturated fats, comprising mixed almonds and peanuts) vs. an isoenergetic higher-carbohydrate cereal bar (HC-CB) within the diet of 101 Chinese adults with overweight and normo- or hyperglycaemia. Ectopic pancreas and liver fat were characterised using magnetic resonance imaging and spectroscopy (MRI/S) as a secondary outcome. Participants were randomized to receive HP-NB or HC-CB daily as a 1 MJ light meal or snack replacement, in addition to healthy eating advice. Anthropometry and clinical indicators of T2D risk were assessed fasted and during an oral glucose tolerance test (OGTT), pre- and post-intervention. No significant difference was observed between diet groups for body weight, body mass index, waist or hip circumference, blood pressure, glucoregulatory markers, lipid profile or inflammatory markers over 12 weeks (all, p > 0.05). No difference was observed between glycaemic subgroups or those with normal versus high ectopic organ fat. Although HP-NB can attenuate postprandial glycaemia following a meal, no effects were observed for either fasting or glucose-mediated outcomes following longer-term inclusion in the habitual diet of Chinese adults with overweight, including at-risk subgroups.
- Publication
Nutrients, 2024, Vol 16, Issue 13, p1
- ISSN
2072-6643
- Publication type
Article
- DOI
10.3390/nu16132103