alexa The Second Meal Effect and Its Influence on Glycemia
ISSN: 2161-0509

Journal of Nutritional Disorders & Therapy
Open Access

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Review Article

The Second Meal Effect and Its Influence on Glycemia

Justin A Fletcher1,4, James W Perfield II1,2, John P Thyfault1,3,4 and R Scott Rector1,3,4*

1Departments of Nutrition and Exercise Physiology, University of Missouri, USA

2Food Science of Gastroenterology and Hepatology, University of Missouri, USA

3Internal Medicine-Division of Gastroenterology and Hepatology, University of Missouri, USA

4Harry S Truman Memorial Veterans Medical Center, Columbia, Missouri 65201, USA

*Corresponding Author:
R. Scott Rector, PhD
Assistant Professor and Research Health Scientist
Harry S Truman Memorial VA Hospital
Departments of Internal Medicine
Division of Gastroenterology and Hepatology and Nutrition and Exercise Physiology
University of Missouri-Columbia, Columbia, MO 65212, USA
Tel: 573-884-0979
Fax: 573-884-4595
E-mail: [email protected]

Received date: February 01, 2012; Accepted date: March 01, 2012; Published date: March 03, 2012

Citation: Fletcher JA, Perfield II JW, Thyfault JP, Rector RS (2012) The Second Meal Effect and Its Influence on Glycemia. J Nutr Disorders Ther 2:108. doi:10.4172/2161-0509.1000108

Copyright: © 2012 Fletcher JA, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.



 

Abstract

The study of factors that influence blood glucose homeostasis is becoming increasingly important as prevalence rates for insulin resistance and type 2 diabetes have increased. Diets with a low glycemic index (lowGI) have been shown to reduce the risk for diseases by limiting the increase of glucose in the blood. LowGI intake in one meal also has been shown to limit the postprandial glycemic response (PPGR) to a subsequent meal; a concept termed the “second meal effect”. Although there have been many theories for the mechanisms responsible for the second meal effect, the exact cause has yet to be elucidated. It is important for both research investigators as well as patients to consider food consumption prior to testing PPGR, as there is evidence that the GI of one meal not only affects the PPGR of that meal, but will also influence the PPGR of the following meal(s). Here we will review recent evidence regarding factors believed to contribute to the second meal effect and the magnitude of their impact.

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