What is considered the most effective way to decrease a person's body weight?

The most effective method to decrease a person's body weight is to decrease caloric intake while simultaneously increasing physical activity. This approach relies on the principle of creating a caloric deficit, which occurs when the number of calories burned exceeds the number of calories consumed. Reducing caloric intake ensures that the body is not receiving more energy than it needs for daily functions, leading to weight loss over time.

Additionally, increasing physical activity further enhances the caloric deficit, as it increases the total number of calories expended throughout the day. Exercise helps to preserve lean muscle mass during a weight loss phase, which is important for maintaining metabolic health. Combining these two strategies not only promotes effective weight loss but also supports overall fitness and well-being.

While other methods suggested, like increasing protein intake, engaging in intermittent fasting, or using weight loss supplements, can have their benefits, they do not replace the fundamental need for managing caloric balance and physical activity for sustainable weight loss outcomes.