ArticleIndian journal of endocrinology and metabolism
Effect of Pre-breakfast Whey Protein Supplement on Post-breakfast Glycaemic Excursion and Insulinotropic Response in Type 2 Diabetes Mellitus.
Article in Indian journal of endocrinology and metabolism. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Introduction: Postprandial glucose excursions can contribute to increased cardiovascular risk, microvascular complications, and glycaemic variability in type 2 diabetes mellitus (T2DM). Nutritional interventions play a major role. Whey protein, known for its insulinotropic and incretin-stimulating effects, could be an effective supplement. The objective of the study was to evaluate the acute effects of pre-breakfast whey protein supplementation on postprandial glucose, insulin, GLP-1, and C-peptide responses in patients with T2DM. Methods: This single-centre, prospective, within-subject comparative study included two test visits per participant: a water pre-load (control) and a whey protein pre-load (30 g in 250 mL water) given 30 min before breakfast. Uniform breakfast and lunch meals were provided, and blood samples were collected up to 2 h after lunch. Plasma glucose, insulin, GLP-1, and C-peptide were recorded, and the incremental area under the curve (iAUC) was calculated. Results: Ten patients with T2DM were studied (mean age 47.8 years, body mass index 29.2 kg/m², glycated haemoglobin 7.4%, disease duration 3.2 years). Compared with water, whey protein significantly reduced post-breakfast and post-lunch glucose excursions (glucose iAUC 48,329 vs. 54,743; Conclusion: Pre-breakfast whey protein supplementation reduced postprandial glucose excursions and enhanced insulin and incretin responses in T2DM. It may serve as a practical and low-cost dietary approach to improve postprandial glycaemic control.
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