[Clinical and preventive intervention in eating behaviour: a dialogue between psychology and nutritional sciences]

The eating habits modification is a clinical challenge, both on therapeutic and preventive levels, which requires tools from various areas of health, such as psychology and nutrition. In the structured work in these areas, that includes the referral to specialist consultants, there is a need of a first intervention in Primary Health Care, in clinical and community levels. In this paper, we attempt to systematize useful information for intervention. We will start by reviewing some important interviewing skills, some models of motivational interviewing, and we will make a brief reflection about the client. Then we will analyse an individual case structured in two complementary levels of interpretation: a closer look in general factors and another that reflect the antecedents, consequences and the description of the behaviour problem. We will also tackle issues related to the context in which the individual moves. We will analyse some group intervention programs within a clinical and preventive perspectives. Finally, we will discuss some concepts related to therapeutic adherence.