If you want to lose weight, but you don’t have the time or money to hit the gym, go for a run. Even 30 minutes can help you shed unwanted pounds, Kelly Borowiec, an ACE-certified personal trainer, told POPSUGAR — especially if you’re just starting to work out and you commit to cleaning up your diet at the same time.

You don’t even have to run every day to start seeing results. Kelly recommends running three to four days a week to stay in shape and prevent injury, though you should work your way up to it. On days you don’t run, plan to do a different workout like strength training or yoga. “This will help strengthen the muscles you use to run, such as your quadriceps, hamstrings, and glutes,” she said. “Remember to schedule one full rest day per week to allow your body to recover.”

For regular runners, a 30-minute workout won’t have the same effect. When your body is used to an activity, it uses less energy to do it. However, the faster you run, the more calories you’ll burn, Kelly explained. Once you’ve worked your way up to running consistently, think about incorporating speed work or high-intensity intervals to increase your calorie burn.

Remember that, if you’re going from little or no physical activity to running, you’re likely to feel hungrier, and eating more will make it much harder to stay in the calorie deficit that’s necessary for weight loss. Kelly suggests keeping your kitchen stocked with healthy options (like these recovery snacks) to avoid grabbing something postrun that amounts to more calories than you’ve just burned. Having a healthy pre-workout snack about 30 minutes before your run will also keep your energy levels up and prevent you from feeling famished when you’re done.