Educational Dietary Intervention in Early Cardiac Rehabilitation After Myocardial Infarction

Inclusion Criteria: * age ≥18 years, * recent myocardial infarction treated according to standard clinical practice, * qualification for early cardiac rehabilitation after myocardial infarction, * clinically stable status at enrollment, * ability to participate in standard rehabilitation and additional nutritional education, * ability to complete dietary and nutritional knowledge questionnaires, * ability to undergo anthropometric measurements and bioelectrical impedance analysis, * provision of written informed consent. Exclusion Criteria: * refusal or inability to provide informed consent, * contraindications to cardiac rehabilitation, * severe clinical instability, including unstable hemodynamic status, recurrent ischemia, uncontrolled arrhythmia, or decompensated heart failure, preventing participation in rehabilitation; * severe cognitive, psychiatric, or communication limitations preventing participation in educational sessions or reliable questionnaire completion, * conditions preventing valid body composition assessment (according to device producer e.g. large metal implants).