Tackling Disruptions to Frailty Interventions: Developing Personalized Interventions Targeted for Older Persons With Cardiac Frailty

Inclusion Criteria: * Age ≥ 21 years old * Outdoor ambulant Exclusion Criteria: 1. Bed-bound 2. Dementia (Stage 6 onwards) 3. Residing in sheltered or nursing home 4. Cancer (to avoid confounding with cardiac disease sequelae from cancer) 5. Participation in ongoing clinical trials that involve interventional drugs or devices 6. Uncontrolled hypertension (systolic blood pressure ≥160mmHg and/or diastolic blood pressure ≥90mmHg) despite being on treatment for hypertension 7. Low blood pressure (systolic blood pressure \<90mmHg or diastolic blood pressure \<40mmHg) 8. Uncontrolled atrial fibrillation (controlled atrial fibrillation is allowed) 9. Ventricular arrhythmias (such as ventricular tachycardia) 10. Renal failure on dialysis 11. Chronic kidney disease Stage 4 and above 12. Nephrotic syndrome 13. Liver cirrhosis Child's B and above 14. Inflammatory Bowel Disease 15. Severe uncontrolled gout 16. Poorly controlled Diabetes Hba1c ≥9% 17. On warfarin 18. Presence of food allergies (such as shell-fish, prawn) 19. Patient's life expectancy is expected to be less than one year at the time of potential enrolment as assessed by the investigator 20. Nasogastric or parenteral nutrition 21. Hypertrophic cardiomyopathy 22. Cardiac amyloidosis 23. Cardiac sarcoidosis