Journal
METABOLITES
Volume 11, Issue 11, Pages -Publisher
MDPI
DOI: 10.3390/metabo11110742
Keywords
meta-analysis; n-3; polyunsaturated fatty acids PUFA; T2DM; diabetes; randomized controlled trials RCTs; glycemic control; metabolic and inflammatory biomarkers; weight; BMI
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The meta-analysis showed that n-3 supplementation significantly improves glycemic factors and lipid profile in patients with type 2 diabetes mellitus (T2DM), but does not have a significant impact on weight and BMI.
Beneficial effects of n-3 fatty acids on metabolic biomarkers in patients with type 2 diabetes (T2DM) has been reported. The objectives of this current research were to investigate the effects of n-3 supplementation on metabolic factors, weight, and body mass index (BMI) in patients with type 2 diabetes mellitus (T2DM), using a meta-analysis of randomized, controlled trials (RCTs). Online databases PubMed, Embase, Web of Science, and Science Direct were searched until 2021 to identify eligible articles. Thirty trials were included. The results showed that n-3 consumption can significantly reduce glycemic factors including fasting blood sugar (FBS) (-0.36 (-0.71 to -0.01)), glycated hemoglobulin (HbA1c) (-0.74 (-1.13 to -0.35)), and homeostatic model assessment of insulin resistance (HOMA.IR) (-0.58 (-1.13 to -0.03)). Furthermore, significant improvement in lipid profile including triglycerides (TG) (-0.27 (-0.37 to -0.18)), total cholesterol (-0.60 (-0.88 to -0.32)), low density lipoprotein (LDL) (-0.54 (-0.85 to -0.23)), and high-density lipoprotein (HDL) (0.60 (0.23 to 0.96)) levels were found in the present meta-analysis. The reduction in the inflammatory marker's tumor necrosis factor-alpha (TNF-alpha) (-0.13 (-0.75 to 0.48)) and c-reactive protein (CRP) (-0.72 (-1.70 to 0.27)), as well as weight (-0.09 (-0.24 to 0.07)) and BMI (-0.13 (-0.29 to 0.02)) were not statistically significant. Furthermore, the findings revealed that the optimal dose and duration of n-3 consumption for patients with T2DM is 1000-2000 mg/d for more than 8 weeks. The present meta-analysis and review reveals that n-3 supplementation can improve glycemic factors and lipid profile in patients with T2DM. Furthermore, n-3 supplementation may provide beneficial effects on inflammatory markers and body weight if used at the appropriate dose and duration.
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