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Minerva Gastroenterologica e Dietologica 2020 Apr 23

DOI: 10.23736/S1121-421X.20.02704-X


lingua: Inglese

Diet high in protein-rich foods with structured sport activity may be useless to lose fat mass and maintain fat-free mass

Mauro LOMBARDO 1, 2 , Marco A. PERRONE 3, Giovanni AULISA 1, Paola PELLEGRINI 1, Elvira PADUA 1, 4, Chiara BELLIA 5, Giuseppe ANNINO 4, Alfonso BELLIA 2, Massimo FEDERICI 2, Ferdinando IELLAMO 2, 3, 4

1 Department of Human Sciences and Promotion of the Quality of Life, San Raffaele Open University, Rome, Italy; 2 Department of Systems Medicine, University of Rome “Tor Vergata,” Rome, Italy; 3 Division of Cardiology, University of Rome Tor Vergata, Rome, Italy; 4 School of Human Movement Science, University of Rome “Tor Vergata,” Rome, Italy; 5 Department of Biomedicine, Neuroscience and Advanced Diagnostics, Institute of Clinical Biochemistry, Clinical Molecular Medicine and Laboratory Medicine, University of Palermo, Palermo, Italy


OBJECTIVE: This study aimed to demonstrate that a normal protein diet along with minimal sports activity can be enough to lose fat mass and maintain muscle mass.
METHODS: All participants were prescribed a hypocaloric nutritionally balanced Mediterranean-style diet tailored to the individual for 8 weeks. Body composition and energy expenditure were measured. Sedentary patients (G1) were only recommended to perform minimal aerobic training, while sport subjects (G2) were prescribed structured physical activity and higher calorie and protein contents in the diet.
RESULTS: There were no significant differences between the two groups for any of the measured parameters.
CONCLUSIONS: The models of lifestyle changes that are currently circulating were for the most part ineffective. It does not appear to be necessary to increase the protein content of the diet above that recommended by guidelines in order to lose weight. Even prescribing specific physical activity is not necessary to maintain muscle mass.

KEY WORDS: Protein; Diet; Physical activity; Body composition; Energy expenditure; Diet industry

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