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- Title
The Role of Dietary Intake in the Weight Loss Outcomes of Roux-en-Y Gastric Bypass and Sleeve Gastrectomy: A Systematic Review and Meta-analysis.
- Authors
Qanaq, Dalal; O'Keeffe, Majella; Cremona, Simone; Bernardo, Wanderley Marques; McIntyre, Robert D.; Papada, Efstathia; Benkalkar, Saumit; Rubino, Francesco
- Abstract
The relationship between postoperative dietary intake and weight loss after bariatric surgery remains unclear. We performed a systematic review and meta-analysis of studies published between January 2000 and May 2023, reporting weight loss outcomes, and dietary intake before and after Roux-en-Y gastric bypass and sleeve gastrectomy. A total of 42 studies were included. There was no detectable difference in dietary intake between the two procedures. Roux-en-Y gastric bypass induced an average decrease in energy intake of 886 kcal/day at 12-month post-surgery; however, there was no correlation between daily energy intake and weight loss. These findings show a substantial reduction of energy intake in the first year after bariatric surgery but do not support a link between lower energy intake and greater weight loss.
- Publication
Obesity Surgery, 2024, Vol 34, Issue 8, p3021
- ISSN
0960-8923
- Publication type
Article
- DOI
10.1007/s11695-024-07183-8