Effect of Chia (Salvia hispanica L.) Flour on Glycemic Response and Energy Intake in Healthy Adults (P06-099-19)

Abstract

ObjectivesPostprandial glycemic control is essential in both healthy and diabetic people, as hyperglycemia predisposes to complications associated with diabetes. The consumption of fiber-rich meals help to prevent and control undesirable glycemic changes. This study aimed to evaluate the effect of one-day consumption of chia on glycemic response and energy intake in healthy adults. MethodsSingle-blind, randomized, crossover design study involving healthy adults, normal weight (BMI 18.5–24.9 kg/m2), euglycemic (100 mg/dL), with no diabetes family history. They attended to the laboratory after 10–12 h fasting and received either 350 ml of a shake containing 10 g of chia flour (4.44 g of fiber) or 350 ml of a control shake (1.1 g of fiber)- similar in calories and macronutrients, containing 51 g of available carbohydrate - on two non-consecutive days (washout period). At each testing day, 60 minutes after shake intake a glucose solution (25 g) was provided. Capillary blood glucose was measured in fasting state (–60 min), immediately before (0 min), and 15, 30, 45, 60, 90, 120 minutes after glucose load. In addition, food intake was assessed 24-hour dietary recall was performed after each testing day. Habitual dietary intake was estimated using the semi-quantitative QFCA. The study was approved by the Local Ethics Committee. Repeated-measures ANOVA test was used to compare habitual dietary intake and consumption after shake. Two-way repeated measures ANOVA test followed by Bonferroni’s post-hoc was used to assess the differences in postprandial blood glucose. Incremental area under the curve (AUC) of postprandial glycemia was calculated using the trapezoidal rule and paired sample t-test was used to compare them. All analyses were conducted using SPSS software. Statistical significance was set as p < 0.05. ResultsFifteen subjects completed the study (14 female and 1 male). Consumption of chia (10 g of chia flour) did not change the blood glucose (p > 0.05) nor food intake (p > 0.05) among adults (25 ± 1 years), euglycemic (87.88 ± 1.21 mg/dL), normal weight (21.06 ± 0.28 kg/m2 and 23.23 ± 1.19% body fat percentual). ConclusionsThe one-day consumption of chia flour did not affect the glycemic response and did not interfere in energy intake in healthy individuals. The long-term effect of chia should be assessed. Funding SourcesCNPq, CAPES, FAPEMIG, FUNARBE, DNS-UFV. Supporting Tables, Images and/or Graphs▪