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Evidence-Based Supplement Research
Evidence-Based Supplement Research

The effect of oat bran consumption on gestational diabetes: a randomized controlled clinical trial.

  • 2021-04-13
  • BMC endocrine disorders 21(1)
    • Zahra Barati
    • Mina Iravani
    • Majid Karandish
    • Mohammad Hosein Haghighizadeh
    • Sara Masihi

Study Design

Type
Randomized Controlled Trial (RCT)
Sample size
n = 112
Population
112 women with gestational diabetes
Methods
Randomized clinical trial, 4 weeks of 30g oat bran daily added to standard diet for gestational diabetes, compared to standard diet alone
Duration
4 weeks
Funding
Unclear
  • Large Human Trial

Background

Gestational diabetes is the most common medical complication in pregnancy, and it has many side effects for the mother and the fetus. The aim of this study was to evaluate the effect of oat bran consumption on gestational diabetes.

Methods

This study is a randomized clinical trial that was performed on 112 women with gestational diabetes treated with diet. Participants were randomly divided into two groups of 56. Participants in both groups were given a diet for gestational diabetes. In addition to the diet, the intervention group received 30 g of oat bran daily for 4 weeks at lunch and dinner. Tests of fasting blood glucose and two-hour postprandial (2hpp) glucose were taken from both groups: before the intervention, and 2 and 4 weeks after the start of the intervention. Data analysis was performed using SPSS statistical software (version 22) using independent t-test, as well as Chi-square and Mann-Whitney tests. P values less than 0.05 were considered statistically significant.

Results

There was no statistically significant difference between the two groups in terms of mean blood glucose before the intervention, while 2 and 4 weeks after the intervention, mean fasting blood glucose and two-hour postprandial (2hpp) glucose decreased significantly in the intervention group compared with the control group (P < 0.001).

Conclusion

Based on the results of this study, the addition of oat bran to the standard diet for pregnant women with gestational diabetes reduced fasting blood glucose and two-hour postprandial (2hpp) glucose. More detailed studies with higher sample sizes are recommended to prove the effectiveness of this valuable dietary supplement.

Trial registration

IRCT registration number: IRCT20191220045828N1 . Registration date: 2020-04-18. Registered while recruiting.

Research Insights

  • 2 and 4 weeks after the intervention, mean fasting blood glucose and two-hour postprandial (2hpp) glucose decreased significantly in the intervention group compared with the control group (P < 0.001).

    Effect
    Beneficial
    Effect size
    Large
    Dose
    30 g daily for 4 weeks at lunch and dinner
  • 2 and 4 weeks after the intervention, mean fasting blood glucose and two-hour postprandial (2hpp) glucose decreased significantly in the intervention group compared with the control group (P < 0.001).

    Effect
    Beneficial
    Effect size
    Large
    Dose
    30 g daily for 4 weeks at lunch and dinner
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