Inclusion Criteria:  (i) Type 2 diabetes, (ii) LVEF > 40 %, (iii) a clinical diagnosis of HFpEF and/or left ventricular hypertrophy (posterior wall thickness > 12 mm) and/or previous myocardial infarction, (iiii) age ≥ 18 years old, and (iv) one of the following criteria (a-d) should be fulfilled:  Echocardiographic signs of diastolic dysfunction E/e' > 8 Septal e ́< 7 cm/s and/or lateral e ́ < 10 cm/s Left atrium volume index ≥34 mL/m2 and/or left atrial diameter > 4 cm NT-proBNP > 125 pg/ml.  Exclusion Criteria:  Insulin treatment, inability to give informed consent