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A Journey Into a Mediterranean Diet and Type 2 Diabetes: A Systematic Review With Meta-Analyses

A Journey Into a Mediterranean Diet and Type 2 Diabetes: A Systematic Review With Meta-Analyses

Katherine Esposito, Maria Ida Maiorino, Giuseppe Bellastella, Paolo Chiodini, Demosthenes Panagiotakos, Dario Giugliano

BMJ Open. 2015 Aug 10;5(8):e008222.

PMID: 26260349

Abstract:

Objectives:
To summarise the evidence about the efficacy of a Mediterranean diet on the management of type 2 diabetes and prediabetic states.
Design:
A systematic review of all meta-analyses and randomised controlled trials (RCTs) that compared the Mediterranean diet with a control diet on the treatment of type 2 diabetes and prediabetic states was conducted. Electronic searches were carried out up to January 2015. Trials were included for meta-analyses if they had a control group treated with another diet, if they were of sufficient duration (at least 6 months), and if they had at least 30 participants in each arm. A random-effect model was used to pool data.
Participants:
Adults with or at risk for type 2 diabetes.
Interventions:
Dietary patterns that described themselves as using a 'Mediterranean' dietary pattern.
Outcome measures:
The outcomes were glycaemic control, cardiovascular risk factors and remission from the metabolic syndrome.
Results:
From 2824 studies, 8 meta-analyses and 5 RCTs were eligible. A 'de novo' meta-analysis of 3 long-term (>6 months) RCTs of the Mediterranean diet and glycaemic control of diabetes favoured the Mediterranean diet as compared with lower fat diets. Another 'de novo' meta-analysis of two long-term RCTs showed a 49% increased probability of remission from the metabolic syndrome. 5 meta-analyses showed a favourable effect of the Mediterranean diet, as compared with other diets, on body weight, total cholesterol and high-density lipoprotein cholesterol. 2 meta-analyses demonstrated that higher adherence to the Mediterranean diet reduced the risk of future diabetes by 19-23%.
Conclusions:
The Mediterranean diet was associated with better glycaemic control and cardiovascular risk factors than control diets, including a lower fat diet, suggesting that it is suitable for the overall management of type 2 diabetes.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
IAR42410491	Cholesterol-2,3,4-13C3			Price

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