Runners have considerably lower prevalence of overweight and obesity than non-runners. While obesity is related to hereditary factors and high-calorie diets, running seems to mitigate their adverse effect on weight.
However, running is not a fast solution for weight loss. Weight loss takes place over time and requires patience. Your body is an amazing machine. It's designed for efficiency, meaning if you do the same thing over and over again, the process becomes easier.
This applies to your running workouts too. Not only will they start to feel more effortless (even if you're still sweating and pumping your legs), but your metabolism literally learns and reacts so that fewer calories are burned with the same exercise output.
Running will keep burning calories but at a slower pace unless you keep increasing your distance and effort. You otherwise have to eat right and work on your nutrition. With proper fueling, nutrition planning, and appropriate meals meals, you’ll be on your way to losing weight and running faster in no time.