期刊
FOOD SCIENCE & NUTRITION
卷 9, 期 8, 页码 4598-4616出版社
WILEY
DOI: 10.1002/fsn3.2403
关键词
blood glucose; diabetes; human subjects; inulin-type fructans; meta-analysis; total cholesterol
资金
- National Key R&D Programm of China [2019YFA0801701, 2018YFA0506901, 2016YFA0502002]
- National Science Foundation of China [91854104, 31690103]
The study found that intake of inulin-type fructan (ITF) significantly lowered blood glucose, total cholesterol, and triglycerides in diabetic individuals, but did not show significant effects in other subject groups. ITF intake did not affect body weight and blood insulin levels.
Inulin-type fructan (ITF) intake has been suggested to alleviate several features of metabolic syndrome including obesity, diabetes, and hyperlipidemia; yet, results from the human trials remained inconsistent. We aimed to systematically evaluate the effects of ITF intake on body weight, glucose homeostasis, and lipid profile on human subjects with different health status, including healthy, overweight and obese, prediabetes and diabetes, and hyperlipidemia. Weighted mean differences (WMDs) between ITF and control groups were calculated by a random-effects model. A total of 33 randomized controlled human trials were included. Significant effect of ITF intake was only observed in the diabetics, but not in the other subject groups. Specifically, ITF intervention significantly decreased the WMD of blood glucose (-0.42 mmol/L; 95% CI: -0.71, -0.14; p = .004), total cholesterol (-0.46 mmol/L; 95% CI: -0.75, -0.17; p = .002), and triglycerides (TAG) (-0.21 mmol/L; 95% CI: -0.37, -0.05; p = .01) compared with the control. The stability of these favorable effects of ITF on diabetics was confirmed by sensitivity analysis. Also, ITF tends to lower LDL cholesterol (p = .084). But body weight and blood insulin were not affected by ITF intake. It should be noted that blood glucose, total cholesterol, and LDL cholesterol exhibited high unexplained heterogeneity. In conclusion, ITF intake lowers blood glucose, total cholesterol, and TAG in the people with diabetes, and they may benefit from addition of inulin into their diets, but the underlying mechanisms responsible for these effects are inconclusive.
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