Intermittent fasting enhances fat oxidation at rest but not during exercise ⏰
You may not become a 24/7 fat burning machine.
Six weeks of time-restricted eating improves basal fat oxidation and body composition but not fat oxidation during exercise in young males
Study Details
This new study assessed the impact of 6-weeks…
⏰ Intermittent fasting (16:8)
🍽️ Control diet
…on substrate oxidation, body composition and blood markers of metabolic health in young males 🔍
Here is what they found ⬇️
Key Findings
After 6-weeks intermittent fasting led to significantly greater reductions in…
✅ Body mass
✅ Fat mass
✅ Body fat %
✅ Visceral adipose tissue
🚨 Lean mass
Plus significantly greater adaptations in resting metabolism vs control…
👉 Fat oxidation (0.33 mg/kgFFM/min vs -0.37 mg/kgFFM/min)
👉 Carbohydrate oxidation (-0.39 mg/kgFFM/min vs 0.45 mg/kgFFM/min)
Yet there were no differences between groups for…
🔥 Exercise substrate oxidation
🩸 Blood markers of metabolic health
Conclusion
Intermittent fasting may enhance resting fat oxidation and body fat loss ✅
However, for those seeking to maintain/improve lean mass or improve exercise-related fat oxidation, intermittent fasting may not be a suitable strategy 🧐
Reference
https://pubmed.ncbi.nlm.nih.gov/40382896/
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