Resting metabolic rate (RMR) is the amount of energy the body expends at rest, accounting for a large portion of daily calorie expenditure. In individuals with obesity, RMR can vary widely, influenced by factors like age, muscle mass, and metabolic adaptations. Lower RMR can make weight loss more challenging, as fewer calories are burned at rest. Strategies to boost RMR, such as strength training to increase muscle mass or incorporating protein-rich foods, can support weight loss efforts. Understanding RMR’s role in obesity management allows for personalized interventions that consider metabolic rate variations, helping to create sustainable weight management plans.