The purpose of the study is to see if a ketogenic diet compared to a standard diet is better to maintain muscle function and health in hospital admitted pneumonia patients.
Age 55 years and older
Bacterial community-acquired pneumonia
Expected at least 10-day stay in the hospital
Ability to ingest food orally
Failure to provide informed consent
Moribund
Vegetarian/vegan
Severe cardiac disease, including NYHA Class III or IV congestive heart failure, clinically significant aortic stenosis, history of cardiac arrest, use of a cardiac defibrillator, or uncontrolled angina