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Effectiveness of a Modified Cost-Effective Dietary Plan in Promoting Weight Loss and Preservation of Lean Body Mass in Patients After Bariatric Surgery
Sponsor: Khyber Teaching Hospital
Summary
This study will see if a low-cost dietary plan, based on the standard dietary guidelines of the American Society for Metabolic and Bariatric Surgery (ASMBS) and using locally available foods, can help patients lose weight and keep their lean body mass after bariatric surgery. It will also check if this plan can maintain healthy levels of important nutrients such as vitamin B12, iron, and vitamin D. Patients who have undergone bariatric surgery will be randomly assigned to follow either the low-cost diet or the regular hospital diet. Their weight, body composition, and nutrient levels will be tracked at baseline, and at 1, 3, and 6 months after surgery. The aim is to find out if this simpler, affordable diet, which follows international standards, works as well as the regular plan while being easier for low-income patients to follow.
Key Details
Gender
All
Age Range
18 Years - 65 Years
Study Type
INTERVENTIONAL
Enrollment
122
Start Date
2025-10
Completion Date
2026-06
Last Updated
2025-08-08
Healthy Volunteers
No
Interventions
Low-Cost Post-Bariatric Diet
Low-Cost Post-Bariatric Diet (Experimental): Based on the American Society for Metabolic and Bariatric Surgery (ASMBS) guidelines. Uses affordable, locally available foods (e.g., eggs, lentils, local dairy products) to meet protein and micronutrient needs. Designed to be cost-effective and accessible for patients from low-income or rural areas.
Standard High-cost Post-Bariatric Diet
Standard Post-Bariatric Diet (Active Comparator): The conventional high-cost diet currently followed at the study hospital. Includes imported or expensive protein supplements such as whey protein and cottage cheese, along with nutritional products not easily accessible in rural or low-resource settings.
Locations (1)
Khyber Teaching Hospital
Peshawar, Khyber Pakhtun Khwa, Pakistan