Core Viewpoint - The article emphasizes that effective weight loss requires a scientific approach rather than extreme dieting or excessive exercise, highlighting the importance of maintaining muscle mass and a balanced lifestyle to avoid rebound weight gain [6][10][15]. Group 1: Weight Loss Challenges - Many individuals experience weight fluctuations, often losing weight only to regain it quickly, which may be due to ineffective weight loss methods [6]. - The concept of "false weight" is introduced, indicating that weight loss on the scale may not reflect actual fat loss, as it could be water or muscle loss instead [7]. - Extreme dieting and excessive exercise can lead to muscle loss and a decrease in metabolic rate, making it harder to maintain weight loss and leading to a cycle of rebound weight gain [8][10]. Group 2: Scientific Weight Loss Strategies - A healthy weight loss rate is suggested to be about 0.5% to 1% of body weight per week, equating to approximately four to ten pounds per month [12]. - Combining diet and exercise is crucial; a balanced intake of quality proteins and regular physical activity, including both aerobic and strength training, is recommended to preserve muscle and enhance metabolism [12]. - After achieving weight loss goals, a consolidation period of 1 to 3 months is necessary to maintain new weight levels by continuing healthy habits [12]. Group 3: GLP-1 Weight Loss Method - The GLP-1 weight loss method is introduced as a new approach for those struggling with weight loss or experiencing rebound effects [13]. - GLP-1, a hormone secreted by the intestines, helps control appetite and prolongs gastric emptying, leading to reduced caloric intake [13][14]. - Compared to traditional dieting and exercise, GLP-1 has the advantage of promoting fat loss rather than just water or muscle loss, resulting in more sustainable weight loss [14]. - It is emphasized that GLP-1 usage should be under medical supervision, and it should be combined with healthy lifestyle changes for long-term effectiveness [14].