 The Whipple procedure is associated with increased readmission rates for infection, pancreatic leak, and failure to thrivemalnutrition. The purpose of this study is to develop an evidence based perioperative nutrition plan to improve patient outcomes. The study has two specific aims including evaluation of feasibility of implementing an evidence based perioperative nutritional plan for patients undergoing Whipple and evaluation of impact of a standard perioperative nutritional plan on primary outcome of readmission rate and secondary outcomes of readmission cause, length of stay for initial hospitalization andor readmission, post surgical complications surgical site infections, pancreatic leak, sepsis, delayed gastric emptying, and nutritional status PG-Subject Generated Assessment scores, BMI, albumin, pre-albumin, and method of oral intake. Categorical variables including readmission rate, readmission cause, post-surgical complications and nutritional status will be compared by chi-square test between intervention and control group. Length of stay for initial hospitalization and readmission will be compared by non parametric Wilcoxon test between two groups. Descriptive statistics will be used to describe the sample. There are no risks to the study participants. 