The goal of this observational study is to explore the dietary intake, nutrition knowledge and body composition in Italian athletes and physically active adults. This is a nonprofit study aimed at improving clinical practice. The main questions it aims to answer are:
* Assessment of level of adherence to Mediterranean Diet using MEDI-LITE questionnaire
* Assessment of nutrition knowledge
* Current dietary intake and eating habits evaluation and comparison to the recommendations, according to sport practised
* Eating behaviour assessment
Participants will undergo the following assessments: anthropometric and body composition assessments, Resting Metabolic Rate measurement, Dietary intake assessment, Nutrition knowledge, Lifestyle and behaviour, Physical activity assessment.