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Association Between Energy and Macronutrient Intakes and Weight Change After Bariatric Surgery: a Systematic Review
Nazanin Moslehi1, Zahra Kamali2, Mahdieh Golzarand3
1Nutrition and Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, No. 24, Shahid Arabi St, Yemen Blvd, Chamran Exp, Tehran, 19857174, Iran. moslehinazanin@yahoo.com.
Obesity Surgery
|January 5, 2023
Summary
Higher energy intake is linked to suboptimal weight loss and regain after bariatric surgery. Macronutrient roles require further study in weight management post-gastric bypass or sleeve gastrectomy.
Area of Science:
- Bariatric Surgery Outcomes
- Nutritional Science
- Obesity Management
Background:
- Understanding postoperative dietary impacts is crucial for bariatric surgery success.
- Suboptimal weight loss (SWL) and weight regain are significant challenges post-sleeve gastrectomy and gastric bypass.
Approach:
- Systematic review and meta-analysis of 23 observational studies.
- Searched PubMed, Scopus, and Web of Science databases up to December 2021.
- Analyzed associations between energy and macronutrient intake and weight loss outcomes.
Key Points:
- Patients experiencing SWL consumed more energy post-surgery compared to those with acceptable weight loss.
- Individuals with weight regain ingested higher energy and carbohydrate amounts, alongside lower protein intake.
- Diverse methodologies were employed across studies investigating postoperative diet and weight loss.
Conclusions:
- Elevated energy consumption correlates with SWL and weight regain following bariatric procedures.
- Further research is needed to elucidate the specific roles of macronutrients in weight outcomes after bariatric surgery.
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