Glycemic response, satiety, gastric secretions and emptying after bread consumption with water, tea or lemon juice: a randomized crossover intervention using MRI.
Purpose: Numerous studies, including our previous work with lemon juice, have reported that low-pH meals reduce the glycemic response to starchy foods. However, the underlying mechanism is not yet understood. Tea, for its polyphenol content, has also been investigated. The main objective of this res...
| Publicado en: | European Journal of Nutrition Vol. 61; no. 3; pp. 1621 - 1637 |
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| Autores principales: | , , , , , , , , , , |
| Formato: | diagnostic images research tables/charts Journal Article |
| Publicado: |
Springer Nature
Apr2022
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=155757654&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 155757654 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 14366207 CR0 jtl: European Journal of Nutrition issn: 14366207 maglogo: N pubinfo: dt: Apr2022 vid: 61 iid: 3 pid: 237 pub: Springer Nature place: New York, New York artinfo: ui: 155757654 154589267 155757654 155757654 10.1007/s00394-021-02762-2 155757654 ppf: 1621 ppct: 16 formats: fmt: – @attributes: type: T – @attributes: type: P tig: atl: Glycemic response, satiety, gastric secretions and emptying after bread consumption with water, tea or lemon juice: a randomized crossover intervention using MRI. aug: au: Freitas, Daniela Boué, François Benallaoua, Mourad Airinei, Gheorghe Benamouzig, Robert Lutton, Evelyne Jourdain, Laurène Dubuisson, Rose-Marie Maître, Xavier Darrasse, Luc Le Feunteun, Steven affil: Université Paris-Saclay, INRAE, AgroParisTech, UMR SayFood, 78850, Thiverval-Grignon, France sug: subj: Gastrointestinal Motility Appetite Glycemic Index Bread Water Tea Lemon Fruit Juices Human Randomized Controlled Trials Random Assignment Crossover Design Blood Glucose Magnetic Resonance Imaging Visual Analog Scaling Gastric Juice Glucans Acid-Base Equilibrium Amylases ab: Purpose: Numerous studies, including our previous work with lemon juice, have reported that low-pH meals reduce the glycemic response to starchy foods. However, the underlying mechanism is not yet understood. Tea, for its polyphenol content, has also been investigated. The main objective of this research was to concurrently study gastric emptying, appetite perceptions and glycemic responses to bread consumed with water, tea, or lemon juice. Methods: In this randomized, crossover intervention, ten participants consumed equal portions of bread (100 g) with 250 mL of water, water-diluted lemon juice, or black tea at breakfast. Gastric volumes, blood glucose concentrations and appetite perceptions were alternately assessed over 180 min using magnetic resonance imaging, the finger-prick method and visual analogue scales, respectively. Results: Compared to water, lemon juice led to a 1.5 fold increase of the volume of gastric contents, 30 min after the meal (454.0 ± 18.6 vs. 298.4 ± 19.5 mL, x ¯ ± SEM P < 0.00001). Gastric emptying was also 1.5 times faster (P < 0.01). Conversely, lemon juice elicited a lower glycemic response than water (blood glucose concentrations at t = 55 min were 35% lower, P = 0.039). Tea had no effect. Changes in appetite perceptions and gastric volumes correlated well, but with no significant differences between the meals. Conclusions: Lemon juice lowered the glycemic response and increased both gastric secretions and emptying rate. The results are compatible with the hypothesis that the reduction of the glycemic response is mainly due to the interruption of starch hydrolysis via the acid-inhibition of salivary α-amylase. Trial registration number: NCT03265392, August 29, 2017. pubtype: Academic Journal doctype: diagnostic images research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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