Nutritional Improvement in Chronic Heart Failure Patients

Randomized clinical trial with blinded evaluators. (The evaluators will not know the group the patients are assigned. Blinded evaluators are no responsible for randomization and intervention once the patients have been randomized). Patients will be recruited from the cardiology inpatient unit of tertiary hospital, before discharge. Patients will be divided in two groups randomly: In one arm will be held a double intervention: * A structured educational intervention oriented to the patient and primary caregiver, with respect to dietary habits, highly energetic and healthy food, the frequency and manner of eating, exercise and programming breaks. * supplementation with dietary supplements, distinguishing one type of product or another, depending on whether the subject to study: diabetes and or kidney failure. In the other arm of the study was carried out regular interventions