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The link between dietary glycemic index and nutrient adequacy

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posted on 2024-11-14, 21:56 authored by Chun Yu Louie, Annette E Buyken, Jennie C Brand-Miller, Victoria Flood
BACKGROUND: Low-glycemic index (low-GI) diets may be less nutritious because of limited food choices. Alternately, high-GI diets could be less healthful because of a higher intake of refined carbohydrate. OBJECTIVE: The objective was to investigate the association between dietary GI, intakes of carbohydrates from high-GI (CHO(high GI)) and low-GI (CHO(low GI)) sources, and the risk of nutrient inadequacy in children and adolescents. DESIGN: Children, aged 2-16 y, who provided 2 plausible 24-h recalls in a national survey were included (n = 4140). The ORs of not meeting the Australian Nutrient Reference Values (NRVs) were calculated by logistic regression. RESULTS: Subjects with higher intakes of CHO(high GI) were found to be at risk of not meeting the NRVs for a wide range of nutrients, including calcium and iodine (both P-trend < 0.001). In comparison with subjects in the lowest quartile of CHO(high GI), those in the highest quartile had 3 times (adjusted OR: 3.13; 95% CI: 2.47, 3.97; P-trend < 0.001) the risk of not meeting the Estimated Average Requirement for calcium. For iodine, the risk increased >5-fold (adjusted OR: 5.45; 95% CI: 3.97, 7.48; P-trend < 0.001). On the other hand, subjects with higher intakes of CHO(low GI) were less likely to meet Adequate Intakes of unsaturated fatty acids (all P-trend < 0.001), despite having lower risks of not meeting the NRVs for most nutrients. CONCLUSION: Children and adolescents who consume more CHO(low GI) are more likely to meet most nutrient recommendations than those consuming higher GI diets.

History

Citation

Louie, J. Chun Yu., Buyken, A. E., Brand-Miller, J. C. & Flood, V. M. (2012). The link between dietary glycemic index and nutrient adequacy. The American Journal of Clinical Nutrition, 95 (3), 694-702.

Journal title

The American journal of clinical nutrition

Volume

95

Issue

3

Pagination

694-702

Language

English

RIS ID

52880

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