In randomized clinical studies, the mediterranean diet has demonstrated beneficial effects on glucose and lipids levels, on body composition, on waist to hip ratio, especially in patients with type 2 diabetes. Consequently, the meditteranean diet is now recommended by experts in cardiology, nutrition and diabetology. However, many of these publications have been generated in populations living around the Mediterranean Basin. Thus, it is not sure that this diet can be used by people living outside this geographic area. We aimed to study the capacity of consecutive patients admitted in diabetology to follow the mediterranean diet recommandations during 12 months. The adherence will be studied in the real life in order to identify all limitations to follow this diet. Therefore, this study may help to find solutions to reinforce adherence to this diet.
Patients older than 18 years of age and consequently admitted in the Dpt of Diabetology in the Pitié-Salpêtrière and the Georges Pompidou Euopean Hospitals will be enroled in this study. After a survey of eating habits, the 14 items of the mediterranean diet (accordingly to Schröder H et al., J Nutr 2011) will be explained. Adherence to the diet is defined by the achievement of more than 9 items from the original list of 14 items. Adhesion to the diet will be studied à 3 and 12 months by questionnaires and the analysis of olive oil consumption (urine levels of hydroxytyrosol and alpha linoleic acid levels in bloood). Consequences of adhesion to the diet on body weight, body composition, glucose and lipids levels, HbA1c and liver enzymes in blood will be collected at 3 and 12 months. At the end of the study, patients will complete a semi-quantitative questionnaire with a sociologist in order to identify main limitations to achieve items of the diet.
Study Type
OBSERVATIONAL
Enrollment
60
Diabetology Department - Pitié-Salpêtrière Hospital
Paris, France
Pitié Salpêtrière - Nutrition
Paris, France
Hôpital Européen Georges Pompidou - Diabétologie
Paris, France
The percentage of patients adhering to the Mediterranean Diet
This pourcentage is defined as an adherence score ≥ 9 in response to the 14-item questionnaire adapted from Schröder H et al., J Nutr 2011
Time frame: 12 months
Association between adherence and variations in the values of urinary hydroxytyrosol
Questionnaire of the 14 objectives Weekly food frequency questionnaire (INPES and INVS)
Time frame: at inclusion, at 3 months and at 12 months
Association between adherence and variations in the values of blood alpha linolenic acid
Questionnaire of the 14 objectives Weekly food frequency questionnaire (INPES and INVS
Time frame: at inclusion, at 3 months and at 12 months
Association between variations in urinary hydroxytyrosol values compared to inclusion and the declaration of an increase in olive oil consumption during follow-up.
In grams per day
Time frame: at 3 months and 12 months
Association between variations in blood alpha linolenic acid values compared to inclusion and the declaration of increased consumption of walnuts during follow-up.
In grams per day
Time frame: at 3 and 12 months
Association between variations in blood alpha linolenic acid values compared to inclusion and the declaration of increased consumption of hazelnuts during follow-up.
In grams per day
Time frame: at 3 and 12 months
Association between variations in blood alpha linolenic acid values compared to inclusion and the declaration of increased consumption of almonds during follow-up.
In grams per day
Time frame: at 3 and 12 months
To study whether adherence at baseline predicts adherence to Mediterranean Diet.
Questionnaire of the 14 objectives Weekly food frequency questionnaire (INPES and INVS)
Time frame: at 3 months and 12 months
Study whether adherence to the Mediterranean Diet modifies the frequency of food consumption
Using questionnaires from the 2011-2012 Abena study (INPES and INVS)
Time frame: during follow-up (12 months)
Describe the difficulties/barriers to the initiation of the Mediterranean Diet
By repeated telephone contacts by a dietician. During these telephone contacts, the dietician will take up the 14-item grid and evaluate with the patient the difficulties or aspects already implemented. The evolution of the 14-item grid will make it possible to analyze any difficulties encountered during contacts in order to report the progress made or the regression in the number of items made over time.
Time frame: at Day 15, at Day 60 and at Day 180
Describe the difficulties/barriers to the initiation of the Mediterranean Diet
Through a validated semi-structured interview (Wycherley TP et al., Diabetic Medicine 2011) conducted by a sociologist. It will be a question of better understanding the experience and adherence-compliance of patients with the different elements that make up the Mediterranean Diet. The secondary objective of using this data collection tool is to understand more particularly the possible difficulties of people who are not used to consuming the foods recommended in this diet.
Time frame: at 12 months
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