Glycaemic index methodology.
The glycaemic index (GI) concept was originally introduced to classify different sources of carbohydrate (CHO)-rich foods, usually having an energy content of >80 % from CHO, to their effect on post-meal glycaemia. It was assumed to apply to foods that primarily deliver available CHO, causing...
| Автори: | , , , , , , |
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| Формат: | Journal article |
| Мова: | English |
| Опубліковано: |
2005
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| _version_ | 1826299373433126912 |
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| author | Brouns, F Bjorck, I Frayn, K Gibbs, A Lang, V Slama, G Wolever, T |
| author_facet | Brouns, F Bjorck, I Frayn, K Gibbs, A Lang, V Slama, G Wolever, T |
| author_sort | Brouns, F |
| collection | OXFORD |
| description | The glycaemic index (GI) concept was originally introduced to classify different sources of carbohydrate (CHO)-rich foods, usually having an energy content of >80 % from CHO, to their effect on post-meal glycaemia. It was assumed to apply to foods that primarily deliver available CHO, causing hyperglycaemia. Low-GI foods were classified as being digested and absorbed slowly and high-GI foods as being rapidly digested and absorbed, resulting in different glycaemic responses. Low-GI foods were found to induce benefits on certain risk factors for CVD and diabetes. Accordingly it has been proposed that GI classification of foods and drinks could be useful to help consumers make 'healthy food choices' within specific food groups. Classification of foods according to their impact on blood glucose responses requires a standardised way of measuring such responses. The present review discusses the most relevant methodological considerations and highlights specific recommendations regarding number of subjects, sex, subject status, inclusion and exclusion criteria, pre-test conditions, CHO test dose, blood sampling procedures, sampling times, test randomisation and calculation of glycaemic response area under the curve. All together, these technical recommendations will help to implement or reinforce measurement of GI in laboratories and help to ensure quality of results. Since there is current international interest in alternative ways of expressing glycaemic responses to foods, some of these methods are discussed. |
| first_indexed | 2024-03-07T05:00:58Z |
| format | Journal article |
| id | oxford-uuid:d844cca7-cdff-4bd8-afe9-e79170cdaa40 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T05:00:58Z |
| publishDate | 2005 |
| record_format | dspace |
| spelling | oxford-uuid:d844cca7-cdff-4bd8-afe9-e79170cdaa402022-03-27T08:47:06ZGlycaemic index methodology.Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:d844cca7-cdff-4bd8-afe9-e79170cdaa40EnglishSymplectic Elements at Oxford2005Brouns, FBjorck, IFrayn, KGibbs, ALang, VSlama, GWolever, TThe glycaemic index (GI) concept was originally introduced to classify different sources of carbohydrate (CHO)-rich foods, usually having an energy content of >80 % from CHO, to their effect on post-meal glycaemia. It was assumed to apply to foods that primarily deliver available CHO, causing hyperglycaemia. Low-GI foods were classified as being digested and absorbed slowly and high-GI foods as being rapidly digested and absorbed, resulting in different glycaemic responses. Low-GI foods were found to induce benefits on certain risk factors for CVD and diabetes. Accordingly it has been proposed that GI classification of foods and drinks could be useful to help consumers make 'healthy food choices' within specific food groups. Classification of foods according to their impact on blood glucose responses requires a standardised way of measuring such responses. The present review discusses the most relevant methodological considerations and highlights specific recommendations regarding number of subjects, sex, subject status, inclusion and exclusion criteria, pre-test conditions, CHO test dose, blood sampling procedures, sampling times, test randomisation and calculation of glycaemic response area under the curve. All together, these technical recommendations will help to implement or reinforce measurement of GI in laboratories and help to ensure quality of results. Since there is current international interest in alternative ways of expressing glycaemic responses to foods, some of these methods are discussed. |
| spellingShingle | Brouns, F Bjorck, I Frayn, K Gibbs, A Lang, V Slama, G Wolever, T Glycaemic index methodology. |
| title | Glycaemic index methodology. |
| title_full | Glycaemic index methodology. |
| title_fullStr | Glycaemic index methodology. |
| title_full_unstemmed | Glycaemic index methodology. |
| title_short | Glycaemic index methodology. |
| title_sort | glycaemic index methodology |
| work_keys_str_mv | AT brounsf glycaemicindexmethodology AT bjorcki glycaemicindexmethodology AT fraynk glycaemicindexmethodology AT gibbsa glycaemicindexmethodology AT langv glycaemicindexmethodology AT slamag glycaemicindexmethodology AT wolevert glycaemicindexmethodology |