Why more exercise doesn’t always mean more weight loss

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While exercise is essential for overall health, it is not a reliable strategy for weight loss. Research suggests that the body adapts to increased physical activity, keeping daily calorie expenditure within a relatively narrow range whether someone is highly active or mostly sedentary. This means that even with more exercise, the total number of calories burned may not rise as much as expected. Exercise still offers major benefits such as improving heart health, strength, and mental well-being. But when it comes to losing weight, it plays a much smaller role than many people assume.

Source

Cox CE. Role of Physical Activity for Weight Loss and Weight Maintenance. Diabetes Spectr. 2017 Aug;30(3):157-160. doi: 10.2337/ds17-0013. PMID: 28848307; PMCID: PMC5556592.

Additional Reading

https://www.washingtonpost.com/wellness/2026/02/09/exercise-weight-loss/

https://www.sciencefocus.com/news/the-biggest-hidden-rule-of-weight-loss

https://gsas.harvard.edu/news/colloquy-podcast-why-exercising-more-may-not-help-you-lose-weight