To examine the association among malnutrition [controlling nutritional status (CONUT) score ≥2; Geriatric Nutritional Risk Index (GNRI) score <92] with BNP, NT‐proBNP and CRP in patients with HF, a meta‐analysis using a random‐effects model was conducted (CRD42023445076). The gene discussed is NPPB; the disease is malnutrition.