Abstract: Methods for pre-surgical medical prehabilitation of a patient prior to a date of surgery to improve post-surgical recovery include directing oral administration of an immunonutritional supplement to the patient during a first time period prior to the surgery date; directing administration of pulmonary preconditioning treatments to the patient during a second time period prior to the surgery date; directing administration of a bacterial decontamination protocol to the patient during a third time period prior to the surgery date; and directing oral administration of a carbohydrate loading and hydration protocol to the patient during a fourth time period prior to the surgery date.