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Glycaemic responses to glucose and rice in people of Chinese and European ethnicity

journal contribution
posted on 20.08.2020 by M Kataoka, BJ Venn, SM Williams, Lisa Te Morenga, IM Heemels, JI Mann
Aims: Diabetes rates are especially high in China. Risk of Type 2 diabetes increases with high intakes of white rice, a staple food of Chinese people. Ethnic differences in postprandial glycaemia have been reported. We compared glycaemic responses to glucose and five rice varieties in people of European and Chinese ethnicity and examined possible determinants of ethnic differences in postprandial glycaemia. Methods: Self-identified Chinese (n = 32) and European (n = 31) healthy volunteers attended on eight occasions for studies following ingestion of glucose and jasmine, basmati, brown, Doongara® and parboiled rice. In addition to measuring glycaemic response, we investigated physical activity levels, extent of chewing of rice and salivary α-amylase activity to determine whether these measures explained any differences in postprandial glycaemia. Results: Glycaemic response, measured by incremental area under the glucose curve, was over 60% greater for the five rice varieties (P < 0.001) and 39% greater for glucose (P < 0.004) amongst Chinese compared with Europeans. The calculated glycaemic index was approximately 20% greater for rice varieties other than basmati (P = 0.01 to 0.05). Ethnicity [adjusted risk ratio 1.4 (1.2-1.8) P < 0.001] and rice variety were the only important determinants of incremental area under the glucose curve. Conclusions: Glycaemic responses following ingestion of glucose and several rice varieties are appreciably greater in Chinese compared with Europeans, suggesting the need to review recommendations regarding dietary carbohydrate amongst rice-eating populations at high risk of diabetes. © 2012 Diabetes UK.

History

Preferred citation

Kataoka, M., Venn, B. J., Williams, S. M., Te Morenga, L. A., Heemels, I. M. & Mann, J. I. (2013). Glycaemic responses to glucose and rice in people of Chinese and European ethnicity. Diabetic Medicine, 30(3), e101-e107. https://doi.org/10.1111/dme.12080

Journal title

Diabetic Medicine

Volume

30

Issue

3

Publication date

01/03/2013

Pagination

e101-e107

Publisher

Wiley

Publication status

Published

Online publication date

20/02/2013

ISSN

0742-3071

eISSN

1464-5491

Language

en

Exports