Glycaemic Index of foods
Research type
Research Study
Full title
Glycaemic index testing of carbohydrate containing foods using a standardised method
IRAS ID
124151
Contact name
Gary Frost
Contact email
Sponsor organisation
Imperial College London
Clinicaltrials.gov Identifier
Research summary
The purpose of this study is to assess the effect that dietary carbohydrates have on blood sugar by measuring the glycaemic index. The glycaemic index is a comparison between the effect of equal amounts of carbohydrate from a test food compared to a standard (in this case glucose) on your blood sugar. Indeed different foods that contain different carbohydrates have different effects on blood sugars. This is of interest as a number of studies have shown that the level of the sugar in the blood after a meal relates directly to the risk of developing heart disease and diabetes. The aim of collecting this data is to be able to give advice to people about the carbohydrates they eat to reduce the risk of diabetes and heart disease.
Summary of results
This study investigates the impact that carbohydrate rich foods made on post prandial glucose. We expressed this as a glycaemic index. We tested two wheat genotypes. One produced a high resistant starch flour the other a low. Capillary blood glucose concentrations were measured in the fasting and postprandial state (2 h) in 20 volunteers: incremental area-under-the-curve (iAUC) and GI were calculated. We found no evidence of difference in GI between the two flours. We also tested two types of millet in 10 volunteers and again where unable to show differences. Although, there are differences in the resistant starch content of the two test foods this did not affect the glycaemic index in volunteers.REC name
London - Bromley Research Ethics Committee
REC reference
13/LO/0696
Date of REC Opinion
21 May 2013
REC opinion
Favourable Opinion