Effectiveness of a Modified Cost-Effective Dietary Plan in Promoting Weight Loss and Preservation of Lean Body Mass in Patients After Bariatric Surgery

"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 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."