Time-restricted eating doesn't beat normal eating for muscle
- Claim
- THE EATING WINDOW
- Catch
- ONLY 120 PEOPLE
- Verdict
- LIFT, DON'T CLOCK-WATCH
Intermittent fasting is everywhere — but does compressing your eating window build more muscle when you train? A systematic review and meta-analysis pooled all five randomized controlled trials that compared time-restricted feeding with conventional diets in adults doing resistance training (120 participants total). Answer: no. Fat-free mass at the end of the interventions differed by just -0.48 kg on average, with a 95% confidence interval from -2.52 to +1.56 kg — statistically indistinguishable from zero. Only two of the five trials found any significant differences in body weight or fat mass. Time-restricted eating wasn't worse either — it simply offered no muscle advantage over eating normally while lifting the same weights. If fasting helps you eat fewer calories, it can still work for fat loss. The muscle came from the lifting, not the clock.
SOURCES
- Verdi AMOH, Soares JM, Andrade MJ, Mazur CE, Gonçalves DC. "Time-restricted feeding with resistance training is not superior to conventional feeding for body composition and muscle strength: a systematic review and meta-analysis." Anais da Academia Brasileira de Ciências. 2026;98(3):e20240672. DOI: 10.1590/0001-3765202620240672
For information only, not medical or nutrition advice.
For information only, not medical advice. Talk to a qualified health professional before changing your diet, supplements or treatment.
