부산대학교 도서관

Background: Exact carbohydrate levels needed for the bariatric patient population have not yet been defined. The aim of this study was to correlate carbohydrate intake to percent excess weight loss for the bariatric patient population based on a cross-sectional study. The author also aimed to review the related literature. Materials and Methods: A cross-sectional study was conducted, along with a review of the literature, about patients who underwent Roux-en-Y gastric bypass at least 1 year previously. Patients had their percentage of excess weight loss calculated and energy intake was examined based on data collected with a four-day food recall. Patients were divided into two groups: 1) patients who consumed 130g/day or more of carbohydrates and 2) patients who consumed less than 130g/day of carbohydrates. Limitations: The literature review was limited to papers published since 1993. Results: Patients who consumed 130g/day or more of carbohydrates presented a lower percent excess weight loss than the other group (p= 0.038). In the review of the literature, the author found that six months after surgery patients can ingest about 850kcal/day of carbohydrates, 30 percent being ingested as lipids. A protein diet with at least 60g/day is needed. On this basis, patients should consume about 90g/day of carbohydrates. After the first postoperative year, energy intake is about 1,300kcal/day and protein consumption should be increased. We can, therefore, establish nearly 130g/day of carbohydrates (40% of their energy intake) Conclusions: Based on these studies, the author recommends that 90g/day is adequate for patients who are six months post Roux-en-Y gastric bypass and less than 130g/day is adequate for patients who are one year or more post surgery. The author concludes that maintaining carbohydrate consumption to moderate quantities and adequate protein intake seems to be fundamental to ensure the benefits from bariatric surgery. [ABSTRACT FROM AUTHOR]