A HIGHER MEAL FREQUENCY MAY BE ASSOCIATED WITH DIMINISHED WEIGHT LOSS AFTER BARIATRIC SURGERY

作者：Ribeiro Angela Gadelha^*; de Carvalho Costa Maria Jose; Faintuch Joel; Goncalves Dias Maria Carolina

来源：Clinics, 2009, 64(11): 1053-1058.

DOI：10.1590/S1807-59322009001100004

• Roux-en-Y gastric bypass
• Bariatric surgery
• Morbid obesity
• Calorie ingestion
• Diet

OBJECTIVE: This study aimed to investigate the relationship between meal frequency, the occurrence of vomiting and weight loss among patients submitted to Roux-en-Y gastric bypass up to 9 months after surgery.
METHODS: Female patients (n = 80) were followed at 3-month intervals for 9 months. Weight, BMI, 24-hour dietary recall, drug consumption and vomiting episodes were recorded and compared with nutritional outcome.
RESULTS: The BMI values at 3, 6 and 9 months were 45.1 +/- 9.7, 39.9 +/- 7.6 and 35.4 +/- 8.2 kg/m(2), respectively. The corresponding choleric intakes were 535.6 +/- 295.7, 677.1 +/- 314.7 and 828.6 +/- 398.2 kcal/day, and the numbers of daily meals were 5.0 +/- 2.5, 4.7 +/- 1.8 and 4.9 +/- 1.0, respectively. The peak of vomiting episodes occurred within 6 months; however, patients tolerated this complication despite its high prevalence. A significant negative correlation between weight loss and diet fractioning, but not vomiting, was observed throughout the entire postoperative period (P = 0.001).
CONCLUSIONS: 1) Frequent small meals were associated with a reduction in weight loss after gastric bypass and a decrease in vomiting episodes at 6 months, and 2) vomiting did not interfere with nutritional outcome. Unless required because of vomiting or other reasons, multiple small meals may not be advantageous after such intervention.

• 出版日期2009