New bariatric patients who have elected for a sleeve gastrectomy as part of standard of care will be invited to participate in the study during the bariatric clinic at William Beaumont Army Medical Center. Patients who meet the inclusion criteria will be invited to participate in the study. These patients will be consented in the bariatric clinic by a research coordinator (Doreen Bandari-Spaulding) or physician listed on the study if the coordinator is unavailable.