View Full Version : Waxy Maize Studies
A lot of people have been asking about waxy maize.
Does anyone have full access to these studies? I don't from my current location..
K. Piehl Aulin, E. Hultman, European Journal of Applied Physiology, 81:346-351, 2000: Muscle glycogen resynthesis rate in humans after supplementation of drinks containing carbohydrates with low and high molecular masses
J.B. Leiper, K. Saderlund, Department of Physiology and Pharmacology Karolinska Institute and Department of Sport and Health Sciences, Stockholm University, Sweden: Improved gastric emptying rate in humans of a unique carbohydrate polymer with gel forming properties
Found the abstract for the 2nd one:
It seems this study found that the waxy maize ( amylose / C-Drink ) emptied from the stomach faster than the dextrose/glucose drink with no difference in plasma insulin/sugar levels!!
[ QUOTE ]
The energy density of a nutrient drink is one of the main factors that affect the gastric emptying of the solution, while osmolality and viscosity are thought to have only a minimal influence. Method: The rate of gastric emptying of two isoenergetic carbohydrate solutions with different osmolality and viscosity was determined using a double sampling gastric aspiration technique. Six healthy male subjects were studied on two occasions using approximately 550 ml of a solution containing 13.5% of carbohydrate either in the form of a mixture of monomeric glucose and short chain glucose oligomers (G-drink) or of long chain glucose polymers composed of 78% amylopectin and 22% amylose (C-drink). Result: The half emptying time (t[1/2], median and range) for the viscous, markedly hypotonic (62 mosmol/ kg) C-drink was faster (17.0(6.2-31.4) min) than for the moderately hypertonic (336 mosmol/kg) G-drink (32.6 (25.2-40.7) min). The amount (median and range) of carbohydrate delivered to the small intestine was greater during the first 10 min after ingestion of C-drink (31.8 (15.8-55.9) g) than after ingestion of G-drink (14.3 (6.8-22.2) g). However, there was no difference in the blood glucose (P=0.73) or serum insulin (P=0.38) concentration at any time point after ingestion of the two test drinks. Conclusion: The results of this study show that the carbohydrate present in C-drink, although it has the propensity to form a gel, empties from the stomach faster than that of an isoenergetic carbohydrate solution (G-drink) without potentiating increased circulating blood glucose or insulin levels.
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I still can't find a link for the 1st study or the full text for the 2nd.
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