Graduate Program in Food and Nutrition/Nutrition Sciences, Paulista State University, School of Pharmaceutical Sciences, Araraquara/SP, Brazil.
Nutr Res. 2012 May;32(5):335-41. doi: 10.1016/j.nutres.2012.03.016. Epub 2012 May 11.
Restricted food intake after bariatric surgery can be an important factor both in the long-term control of body weight and in the onset of nutritional deficiencies. The objective of this study was to assess the adequacy of food intake in women two or more years after bariatric surgery according to the excess weight lost. A group of 141 women who underwent banded Roux-en-Y gastric bypass (RYGB) was divided according to the percentage of excess weight they lost (%EWL)<50; 50┤75; = 75. The habitual energy and nutrient intakes were determined by a 24-hour recall over two days and the probability of adequate intake was based on the Dietary Reference Intake. The mean total estimated energy requirement (EER) as well as energy, macronutrient and cholesterol intakes did not differ among the groups. Only the %EWL<50 group had an intake equal to their EER, but they presented a higher number of inadequacies, such as low levels of magnesium, folic acid and vitamins C and E. Calcium and dietary fiber intakes were extremely low in all three groups. In conclusion, weight loss after surgery is associated with food habits that favor energy intake over micronutrient intake.
限制术后饮食摄入量可能是长期控制体重和出现营养缺乏的重要因素。本研究的目的是根据体重减轻的百分比评估肥胖症手术后两年以上女性的饮食摄入量是否充足。根据体重减轻百分比（%EWL）<50；50┤75；=75，将一组 141 名接受带套 Roux-en-Y 胃旁路手术（RYGB）的女性进行分组。通过两天的 24 小时回忆来确定习惯性能量和营养素的摄入量，基于膳食参考摄入量确定充足摄入的可能性。各组的总估计能量需求（EER）以及能量、宏量营养素和胆固醇摄入量均无差异。只有 %EWL<50 组的摄入量与 EER 相等，但它们存在更多的不足，如镁、叶酸和维生素 C、E 水平较低。三组的钙和膳食纤维摄入量都极低。总之，手术后的体重减轻与饮食习惯有关，这些习惯倾向于能量摄入而不是微量营养素摄入。
