Slow weight loss reduces body inflammation better than fast weight loss
Comparison of the Effects of Rapid, Moderate, and Slow Weight Loss Combined with a Low-Calorie Diet and Physical Activity on Inflammatory Factors in Obese Women
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Surprising Findings
Neither IL-1 nor hs-CRP changed significantly from baseline within any group—yet differences emerged between groups.
This flips the script: you’d expect weight loss to lower inflammation overall, but the study found no within-group improvement. The magic happened only when comparing groups—meaning the *rate* of loss, not the act of losing, triggered the change.
Practical Takeaways
If you're obese and trying to lose weight, aim for a 15–20% calorie deficit over 12–16 weeks—not faster.
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Surprising Findings
Neither IL-1 nor hs-CRP changed significantly from baseline within any group—yet differences emerged between groups.
This flips the script: you’d expect weight loss to lower inflammation overall, but the study found no within-group improvement. The magic happened only when comparing groups—meaning the *rate* of loss, not the act of losing, triggered the change.
Practical Takeaways
If you're obese and trying to lose weight, aim for a 15–20% calorie deficit over 12–16 weeks—not faster.
Publication
Journal
International Journal of Sport Studies for Health
Year
2025
Authors
Fatemeh Doroodian, Nicola Luigi Bragazzi
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Claims (6)
To lose body fat, you must consume fewer calories than you expend, and the size of this calorie deficit has a greater impact on fat loss than whether you do running, weightlifting, or other forms of exercise.
In obese women between 20 and 45 years old, losing weight slowly over 15 weeks with a moderate calorie reduction leads to a larger decrease in two markers of systemic inflammation—interleukin-1 and high-sensitivity C-reactive protein—than losing weight quickly over 12 weeks with a larger calorie reduction.
For obese women between 20 and 45 years old, losing weight through a low-calorie diet combined with aerobic and strength training reduces overall weight and waist size, but does not lead to different final BMI outcomes depending on whether weight is lost quickly, moderately, or slowly.
In obese women between 20 and 45 years old, losing weight quickly by cutting calories by 30–35% for 12 weeks does not lower levels of two inflammatory markers (IL-1 and hs-CRP) compared to their starting levels, but leads to higher levels of these markers after the diet than slower weight loss methods.
In obese women between 20 and 45 years old, losing weight at a moderate pace through a 20–25% calorie reduction over 10 weeks leads to a 22.66% decrease in plasma interleukin-1 levels compared to rapid weight loss, but shows no significant difference compared to slow weight loss.