Running is often touted as an effective way to lose weight. But what does the evidence say? This guide explores the relationship between running and weight loss, based on peer-reviewed research. While running can contribute to weight loss, it is essential to understand the nuances and limitations of the evidence.
This guide provides general educational information and is not a diagnosis, treatment plan or substitute for care from a qualified clinician.
How Running Contributes to Weight Loss
Running is a form of aerobic exercise that can help burn calories and reduce body weight. According to a systematic review and meta-analysis, each 30 minutes of aerobic exercise per week is associated with modest reductions in body weight, waist circumference, and body fat (PMID 39724371). However, to achieve clinically important reductions, aerobic training exceeding 150 minutes per week at moderate intensity or greater may be needed.
Moreover, running can improve metabolic health by reducing visceral and subcutaneous adipose tissues, which are linked to various health risks. The same meta-analysis found that aerobic exercise was associated with reductions in visceral and subcutaneous adipose tissues, indicating potential benefits beyond just weight loss (PMID 39724371).
Evidence: PMID 39724371
Comparing Running to Other Exercise Modalities
While running is effective for weight loss, it is not the only option. A systematic review and meta-analysis compared the effects of resistance training (RT), aerobic training (AT), and concurrent training (CT) on body fat loss. The results showed that AT outperformed RT in reducing body mass and fat mass, especially in studies lasting at least 10 weeks (PMID 40405489). CT also reduced more fat mass compared to RT.
However, no significant differences were found between exercise modalities in altering body fat percentage. This suggests that while AT and CT may be more effective in reducing absolute fat mass, all modalities can contribute to weight loss when combined with a healthy diet.
Evidence: PMID 40405489
The Role of Diet in Weight Loss
Diet plays a crucial role in weight loss, and certain dietary interventions can complement the effects of running. A meta-analysis of randomized controlled trials found that a ketogenic diet significantly benefited weight loss, glycemic control, and lipid profiles in overweight patients with type 2 diabetes mellitus (PMID 36012064). This suggests that dietary changes can enhance the weight loss benefits of running.
Additionally, the use of thermogenic dietary supplements, such as green tea catechin, has been explored. However, a systematic review and meta-analysis found limited benefit from these supplements, indicating that exercise and diet alone may be more effective for weight loss (PMID 33427571, PMID 39350601).
Evidence: PMID 36012064 · PMID 33427571 · PMID 39350601
Limitations of the Evidence and When to Seek Professional Care
While running can aid in weight loss, the evidence has limitations. Most studies focus on short-term outcomes and may not account for individual differences in genetics, metabolism, and lifestyle. Additionally, running can lead to injuries, especially for those new to exercise or with pre-existing conditions. It is essential to seek individualized clinician clearance before starting a new exercise program.
For those with chronic illnesses, older adults beginning vigorous exercise, or those returning from injury, professional guidance is crucial to ensure safe and effective weight loss strategies. A healthcare provider can help tailor an exercise and diet plan that meets individual needs and goals.
Evidence:
Practical Tips for Running and Weight Loss
To maximize the weight loss benefits of running, consider the following tips: Start slowly and gradually increase the duration and intensity of your runs. Aim for at least 150 minutes of moderate-intensity or 75 minutes of vigorous-intensity running per week, as recommended by guidelines (PMID 39724371). Combine running with a balanced diet rich in whole foods to support weight loss and overall health.
Stay hydrated, wear appropriate footwear, and listen to your body to prevent injuries. Consistency is key, so find a running routine that you enjoy and can stick with over the long term.
Evidence: PMID 39724371
Common questions
Frequently asked questions
How much weight can I expect to lose from running alone?
The amount of weight lost from running alone can vary based on factors such as intensity, duration, and individual metabolism. According to a meta-analysis, each 30 minutes of aerobic exercise per week is associated with modest reductions in body weight. To achieve clinically important reductions, longer and more intense running sessions may be needed (PMID 39724371).
Can running help reduce belly fat?
Running can help reduce overall body fat, including visceral and subcutaneous adipose tissues, which are types of belly fat. A meta-analysis found that aerobic exercise was associated with reductions in these adipose tissues, indicating potential benefits for belly fat reduction (PMID 39724371).
Are there any supplements that can enhance weight loss while running?
While some supplements, such as green tea catechin, have been explored for their potential weight loss benefits, evidence suggests that their effects are minimal. Exercise and a balanced diet are more effective strategies for weight loss (PMID 33427571, PMID 39350601).
Is it safe to lose weight quickly through running?
Rapid weight loss can be risky and may lead to muscle loss, nutrient deficiencies, and other health issues. It is essential to aim for a gradual and sustainable weight loss approach, combining running with a healthy diet and lifestyle changes. Seek professional guidance to ensure safe weight loss practices.
Can running improve my overall health besides weight loss?
Yes, running can improve overall health by enhancing cardiovascular fitness, boosting mood, and reducing the risk of chronic diseases such as heart disease, diabetes, and certain cancers. Additionally, running can improve mental health by reducing symptoms of anxiety and depression (PMID 39724371).
Peer-reviewed evidence
References
- Aerobic Exercise and Weight Loss in Adults: A Systematic Review and Dose-Response Meta-Analysis.. JAMA network open (2024). PMID 39724371. DOI 10.1001/jamanetworkopen.2024.52185.
- Ketogenic Diet Benefits to Weight Loss, Glycemic Control, and Lipid Profiles in Overweight Patients with Type 2 Diabetes Mellitus: A Meta-Analysis of Randomized Controlled Trails.. International journal of environmental research and public health (2022). PMID 36012064. DOI 10.3390/ijerph191610429.
- Comparison of concurrent, resistance, or aerobic training on body fat loss: a systematic review and meta-analysis.. Journal of the International Society of Sports Nutrition (2025). PMID 40405489. DOI 10.1080/15502783.2025.2507949.
- Comparing effectiveness of fat burners and thermogenic supplements to diet and exercise for weight loss and cardiometabolic health: Systematic review and meta-analysis.. Nutrition and health (2021). PMID 33427571. DOI 10.1177/0260106020982362.
- Does green tea catechin enhance weight-loss effect of exercise training in overweight and obese individuals? a systematic review and meta-analysis of randomized trials.. Journal of the International Society of Sports Nutrition (2024). PMID 39350601. DOI 10.1080/15502783.2024.2411029.