PMID- 32079920 OWN - NLM STAT- MEDLINE DCOM- 20210201 LR - 20210211 IS - 1530-0315 (Electronic) IS - 0195-9131 (Linking) VI - 52 IP - 8 DP - 2020 Aug TI - Addition of an Alginate Hydrogel to a Carbohydrate Beverage Enhances Gastric Emptying. PG - 1785-1792 LID - 10.1249/MSS.0000000000002301 [doi] AB - PURPOSE: This study aimed to examine the effect of altering osmolality or adding sodium alginate and pectin to a concentrated carbohydrate (CHO) beverage on gastric-emptying (GE) rate. METHODS: Boluses (500 mL) of three drinks were instilled double blind in eight healthy men while seated, GE was measured using the double sampling method for 90 min, and blood samples were collected regularly. Drinks consisted of glucose and fructose (MON; 1392 mOsmol.kg), maltodextrin and fructose (POLY; 727 mOsmol.kg), and maltodextrin, fructose, sodium alginate, and pectin (ENCAP; 732 mOsmol.kg) with each providing 180 g.L CHO (CHO ratio of 1:0.7 maltodextrin or glucose/fructose). RESULTS: Time to empty half of the ingested bolus was faster for ENCAP (21 +/- 9 min) than for POLY (37 +/- 8 min); both were faster than MON (51 +/- 15 min). There were main effects for time and drink in addition to an interaction effect for the volume of test drink remaining in the stomach over the 90 min period, but there were no differences between MON and POLY at any time point. ENCAP had a smaller volume of the test drink in the stomach than MON at 30 min (193 +/- 62 vs 323 +/- 54 mL), which remained less up to 60 min (93 +/- 37 vs 210 +/- 88 mL). There was a smaller volume of the drink remaining in the stomach in ENCAP compared with POLY 20 min (242 +/- 73 vs 318 +/- 47 mL) and 30 min (193 +/- 62 vs 304 +/- 40 mL) after ingestion. Although there was a main effect of time, there was no effect of drink or an interaction effect on serum glucose, insulin or nonesterified fatty acid concentrations. CONCLUSION: The addition of sodium alginate and pectin to a CHO beverage enhances early GE rate but did not affect serum glucose, insulin, or nonesterified fatty acid concentration at rest. FAU - Sutehall, Shaun AU - Sutehall S AD - Division of Exercise Science and Sports Medicine, University of Cape Town, Cape Town, SOUTH AFRICA. FAU - Galloway, Stuart D R AU - Galloway SDR AD - Faculty of Health Sciences and Sport, University of Stirling, Stirling, UNITED KINGDOM. FAU - Bosch, Andrew AU - Bosch A AD - Division of Exercise Science and Sports Medicine, University of Cape Town, Cape Town, SOUTH AFRICA. FAU - Pitsiladis, Yannis AU - Pitsiladis Y AD - Collaborating Centre of Sports Medicine, University of Brighton, Eastbourne, UNITED KINGDOM. LA - eng PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't PL - United States TA - Med Sci Sports Exerc JT - Medicine and science in sports and exercise JID - 8005433 RN - 0 (Alginates) RN - 0 (Blood Glucose) RN - 0 (Dietary Carbohydrates) RN - 0 (Fatty Acids, Nonesterified) RN - 0 (Hydrogels) RN - 0 (Insulin) RN - 89NA02M4RX (Pectins) SB - IM MH - Adult MH - Alginates/*administration & dosage MH - *Beverages MH - Blood Glucose/metabolism MH - Dietary Carbohydrates/*administration & dosage MH - Double-Blind Method MH - Fatty Acids, Nonesterified/blood MH - Gastric Emptying/*physiology MH - Humans MH - Hydrogels MH - Insulin/blood MH - Male MH - Osmolar Concentration MH - Pectins/administration & dosage MH - Time Factors MH - Urine EDAT- 2020/02/23 06:00 MHDA- 2021/02/02 06:00 CRDT- 2020/02/22 06:00 PHST- 2020/02/23 06:00 [pubmed] PHST- 2021/02/02 06:00 [medline] PHST- 2020/02/22 06:00 [entrez] AID - 00005768-202008000-00017 [pii] AID - 10.1249/MSS.0000000000002301 [doi] PST - ppublish SO - Med Sci Sports Exerc. 2020 Aug;52(8):1785-1792. doi: 10.1249/MSS.0000000000002301.