Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Chia Seed (Salvia hispanica L.), Incorporated Into Cookies, Reduces Postprandial Glycemic Variability but Has Little or No Ef-Fect on Subjective Appetite

Version 1 : Received: 4 May 2023 / Approved: 5 May 2023 / Online: 5 May 2023 (07:43:41 CEST)

How to cite: Wolever, T.M.; Campbell, J.E.; Au-Yeung, F.; Dioum, E.H.M.; Shete, V.; Chu, Y. Chia Seed (Salvia hispanica L.), Incorporated Into Cookies, Reduces Postprandial Glycemic Variability but Has Little or No Ef-Fect on Subjective Appetite. Preprints 2023, 2023050321. https://doi.org/10.20944/preprints202305.0321.v1 Wolever, T.M.; Campbell, J.E.; Au-Yeung, F.; Dioum, E.H.M.; Shete, V.; Chu, Y. Chia Seed (Salvia hispanica L.), Incorporated Into Cookies, Reduces Postprandial Glycemic Variability but Has Little or No Ef-Fect on Subjective Appetite. Preprints 2023, 2023050321. https://doi.org/10.20944/preprints202305.0321.v1

Abstract

Chia seed, high in dietary-fiber and protein, may have potential to increase satiety. However, previous studies are confounded by differences in energy intake, and none investigated doses <7g. We compared the subjective appetite and glycaemic responses elicited by 30g cookies containing 0, 3, 5 or 7g chia seed (CS0, CS3, CS5 or CS7, respectively, 140-150kcal, 7-8g fat, 4g protein, 0-2g dietary-fiber, 16g available-carbohydrate) using a randomized, double-blind, cross-over design. Overnight-fasted heathy adults (24 males, 22 females; mean±SD age 37±13y; BMI 27.4±3.9kg/m²) consumed test-cookies and had appetite and plasma-glucose measured before and intermittently for 3h after eating. Data were analyzed by ANOVA with Tukey’s test to adjust for multiple comparisons; the criterion for significance was 2-tailed p<0.025 for the primary endpoints of total area under the curve (tAUC0-3h) for hunger and fullness. Hunger tAUC0-3h was similar among treatments (p=0.49) but fullness differed (p=0.019) with tAUC0-3h after CS3>CS7 (mean±SEM) (140±9 vs 122±10mm×h, p<0.025). Mean incremental glucose AUC0-2h after CS3, CS5 and CS7, respectively, were 22%, 23% and 30% less than CS0 (p<0.05). Thus, although chia reduced glycemic responses, we were unable to demonstrate a significant effect of ≤7g chia seed on the primary endpoints of hunger or fullness tAUC0-3h versus control.

Keywords

randomized clinical trial; humans; salba; blood glucose; hunger; fullness; MAGE.

Subject

Medicine and Pharmacology, Dietetics and Nutrition

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