Short-Term Consumption of Probiotic Yogurt Improved HDL-C of Type 2 Diabetes Mellitus Patients: A Double-Blind Randomized Controlled Trial

摘要

Background and aims : Cardiovascular disease is the main complication and cause of morbidity and mortality in type 2 diabetes mellitus (T2DM) patients. The main cause of complication in T2DM is oxidative stress caused by insulin resistance, hence it can increase lipid profiles (cholesterol, LDL, and triglycerides) which exacerbates endothelial dysfunction. Among various functional foods with antioxidant effects, probiotic foods have been reported to suppress oxidative stress, and also improve the fasting blood glucose (FBG) and lipid profile in patients with T2DM. The aim of this clinical trial is to study the effects of probiotics and conventional yogurt on FBG and lipid profile in patients with T2DM. Material and method : Thirty-eight patients with T2DM, aged 30 to 60 years old, were assigned to two groups in this randomized, doubleblind, controlled clinical trial. The subjects in the intervention group consumed 100 ml/day probiotic yogurt containing Lactobacillus acidophilus La-5 and Bifidobacterium lactis BB-12, whereas subjects in the control group consumed 100 ml/day conventional yogurt for four weeks. Anthropometric indices, dietary intake, physical activity, serum FBG, and lipid profile were evaluated at the beginning and end of the intervention. Results : Consumption of 100 mL/day conventional yogurt could significantly reduce the fasting blood glucose (FBG) level, whereas probiotic yogurt could not reduce FBG significantly. Although the total cholesterol and triglyceride were not improved after yogurt consumption, both type of yogurt could improve HDL-C level. Conclusion : Both conventional yogurt or probiotic yogurt could be used as functional food since it improved the HDL-C in type 2 DM patients.