不同宏量营养素组成对2型糖尿病管理的比较效果:一项随机试验的系统评价和网状Meta分析
Comparative effects of different macronutrient compositions for type 2 diabetes management: a systematic review and network meta-analysis of randomized trials.
作者信息
Badrooj Negin, Jayedi Ahmad, Shab-Bidar Sakineh
机构信息
Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, P. O. Box 14155/6117, Tehran, Iran.
Department of Epidemiology and Biostatistics, School of Public Health, Imperial College, London, UK.
出版信息
J Health Popul Nutr. 2025 Apr 8;44(1):108. doi: 10.1186/s41043-025-00818-1.
BACKGROUND
To assess and rank the comparative effects of different exact macronutrient compositions for type 2 diabetes management rather than examining single macronutrients or as a dietary pattern.
METHODS
PubMed, Scopus, and Cochrane Library Central Register of Controlled Trials were searched. Randomized controlled trials were included. A random-effects network meta-analysis with a Bayesian framework was performed to calculate the mean difference (MD) and 95% credible intervals (CrIs). The certainty of evidence was rated using the GRADE approach.
RESULTS
80 trials with 9232 patients with type 2 diabetes were included in the network meta-analysis. A very low-carbohydrate, high-protein, and calorie-restricted diet had the greatest effect on reducing HbA (range of mean difference: - 1.0% to - 1.79%), weight (range of mean difference: -5.83 kg to -10.96 kg), and FPG (range of mean difference: - 2.20 mmol/L to - 2.88 mmol/L) at 6-month follow-up, but at 12-month follow-up, the effect remained only for HbA (range of mean difference: - 1.25% to - 1.30%) and FPG (range of mean difference: - 1.21 mmol/L to - 1.27 mmol/L). For weight loss in 12-month follow-up, the low-carbohydrate, high-protein diet was probably the most effective approach (range of mean difference: - 10.05 kg to - 14.52 kg). The best dietary approach to reduce LDL at 6-month follow-up was a low carbohydrate, high protein, calorie-restricted diet (range of mean difference: - 0.49 mmol/L to - 0.59 mmol/L) and at 12-month follow-up, a moderate carbohydrate, standard protein, calorie-restricted diet was effective in reducing LDL (mean difference: - 0.87 mmol/L, 95%CrI - 1.55 to - 0.16).
CONCLUSIONS
A very low carbohydrate, high protein, calorie-restricted diet can be an effective dietary composition in managing diabetes, but milder dietary carbohydrate restriction for weight loss in the long-term, and improving lipid profiles is needed.
背景
评估并排序不同精确宏量营养素组成对2型糖尿病管理的比较效果,而非研究单一宏量营养素或作为一种饮食模式。
方法
检索了PubMed、Scopus和Cochrane图书馆对照试验中央注册库。纳入随机对照试验。采用贝叶斯框架进行随机效应网络荟萃分析,以计算平均差(MD)和95%可信区间(CrI)。使用GRADE方法对证据的确定性进行评级。
结果
网络荟萃分析纳入了80项试验,共9232例2型糖尿病患者。在6个月随访时,极低碳水化合物、高蛋白和热量限制饮食对降低糖化血红蛋白(平均差范围:-1.0%至-1.79%)、体重(平均差范围:-5.83 kg至-10.96 kg)和空腹血糖(平均差范围:-2.20 mmol/L至-2.88 mmol/L)的效果最佳,但在12个月随访时,效果仅在糖化血红蛋白(平均差范围:-1.25%至-1.30%)和空腹血糖(平均差范围:-1.21 mmol/L至-1.27 mmol/L)方面仍然存在。对于12个月随访时的体重减轻,低碳水化合物、高蛋白饮食可能是最有效的方法(平均差范围:-10.05 kg至-14.52 kg)。在6个月随访时,降低低密度脂蛋白的最佳饮食方法是低碳水化合物、高蛋白、热量限制饮食(平均差范围:-0.49 mmol/L至-0.59 mmol/L),在12个月随访时,中等碳水化合物、标准蛋白质、热量限制饮食对降低低密度脂蛋白有效(平均差:-0.87 mmol/L,95%CrI -1.55至-0.16)。
结论
极低碳水化合物、高蛋白、热量限制饮食可能是管理糖尿病的有效饮食组成,但长期而言,需要更温和的碳水化合物限制饮食来减轻体重并改善血脂谱。