Postprandial Effects of Blueberry (<i>Vaccinium angustifolium</i>) Consumption on Glucose Metabolism, Gastrointestinal Hormone Response, and Perceived Appetite in Healthy Adults: A Randomized, Placebo-Controlled Crossover Trial.

There were no statistically significant differences between the 2 treatments with breakfast meals for glucose ( p = 0.2956; Figure 2 ) concentrations; however, insulin concentrations at 30 and 60 min were lower in the blueberry treatment group (−9% and −16%, respectively), although this did not reach statistical significance ( p = 0.3994; Figure 2 ).

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