Glycaemic index of selected foodstuffs in healthy persons.
OBJECTIVE
The aim of this study was to determine glycaemic index (GI) of 10 popular foodstuffs/mixed meals in healthy persons.


METHODS
Ten tested foodstuffs and glucose standard were consumed in three replicates in the course of a defined 9-day meal plan: puffed rice squares with chocolate, dark chocolate, white bread, honey and glucose for breakfast (at 7 a.m.) and dinner (at 8 p.m.); pasta with meat, fried fish with mashed potatoes, and buttered apricot dumplings for lunch (at 12 a.m.); wafers, puffed spelt squares with chocolate, and tomato soup for snack (at 4 p.m.). Each portion contained 50 g of carbohydrates and was consumed within 30 minutes. Glucose concentrations were measured by means of the Continous Glucose Monitoring System (CGMS, Medtronic Minimed, Northridge, CA, USA). The results were processed by Solutions Software (Medtronic Minimed, Northridge, CA, USA) and DegifXL4 software, Palacký University, Olomouc, CZ. Twenty healthy persons aged 21.9 +/- 1.39 y (mean +/- SE), BMI 23.6 +/- 0.63 kg/m(2) completed the study.


RESULTS
GI of tested foodstuffs ranged from 34.7 % (chocolate) to 105.3 % (puffed rice squares with chocolate). There were more than tenfold differences between minimal and maximal values of the GI for some foodstuffs. Significant interindividual differences were found between GIs of foodstuffs.


CONCLUSIONS
In twenty healthy persons the glycaemic indexes of ten popular foodstuffs were determined, to be added to the nutritional labels in order to facilitate the optimum meal planning.
Fajkusova
Zuzana
Z
Department of Physiology, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic. zuzana.fajkusova@seznam.cz
Jadviscokova
Tereza
T
Pallayova
Maria
M
Matuskova
Veronika
V
Luza
Jiri
J
Kuzmina
Galina
G
D000328:Adult; D001786:Blood Glucose / Q000032:analysis; D004032:Diet; D005502:Food; D038321:Glycemic Index; D006801:Humans
D001786:Blood Glucose