This work is part of a research field still little explored both nationally and internationally and which are used in different theoretical approaches and methodologies for quantitative analysis of the dynamics of food waste. Most of the research, globally, it focuses on the formation of waste in the stages of production and distribution . In such links in the food chain, as it is known, food waste seem inevitable because most of them comes from an erroneous inventory management, from production surpluses, by damaged or deformed . Few studies were concerned, however, an analysis of food waste in the phase of domestic consumption. Therefore, this paper aims to fill this deficiency by providing the results of a survey, carried out at a representative sample of the population, to quantify, qualify and identify the causes of food waste as well as actions that consumers put in place to reduce or better even to prevent it. The same survey is conducted on a representative sample of 500 individuals, of which 68.4 % residing in Molise. Such individuals have self - selected by filling out the questionnaire developed using the Google Drive . The questionnaire was launched in April 2014 and remained on-line until June 2014. The same has been spread through the social network " Facebook " . The 45 information relating to the characteristics of the individual respondents, the composition of the household, to the habits and attitudes of expenditure and food, guidelines and behaviors to reduce or prevent food waste in the phase of domestic consumption, thus collected are been developed with the use of the software R . Data analysis was conducted in two phases: an analysis of simple correspondences and a cluster analysis. The first allowed to identify why, how and how much is wasted, the second group of respondents into three groups " homogeneous " inside them and uneven between them.