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RESEARCH PRODUCT

Mediterranean diet and dietary protein supplementation as possible predicting variables of weight management: An update of the protein project

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Introduction: The Mediterranean diet is known to support the prevention of several chronic diseases and excessive weight gains. However, relevant investigations were performed in a clinical setting and healthy and physical active individuals were not considered. The aim of this study was therefore to understand the effects of protein supplements intake on body mass index (BMI) in healthy active individuals following the Mediterranean diet. Materials and methods: A face-to-face questionnaire was administered to 667 subjects, 627 living in a Mediterranean area (MD) and 40 in a non-Mediterranean area (NMD); questionnaire enquired dietary behaviors, including a comparison between dietary patterns and protein consumption between these two populations and within each population. Results: Dietary patterns significantly varied between the MD and NMD populations (p < 0.001), although, BMI was not significantly different. The major significant differences were found between the BMI of protein supplement users and non-protein supplement users within and between the two populations (p < 0.01). No differences were found between the BMI of the protein supplement users of MD and NMD, while moderate differences were displayed between the non-supplement users of the two populations (p < 0.05). Conclusions: The Mediterranean diet does not appear to affect BMI. However, BMI significantly differed between protein supplement users and non-protein supplements users indicating a direct influence of such products on body weight and consequently BMI.