After four days of eating only until 2 p.m., people lost a tiny bit of weight—about half a pound—mostly from water and stored carbs, not fat.
Scientific Claim
Early time-restricted feeding leads to a small but statistically significant weight loss of 0.2 ± 0.1 kg over four days in overweight adults, likely due to glycogen depletion from extended fasting rather than fat loss.
Original Statement
“While in the chamber, the eTRF arm had a Δ=0.2±0.1 kg decrease in weight relative to the control arm (p=0.05), likely due to glycogen depletion from the extended daily fasting.”
Evidence Quality Assessment
Claim Status
appropriately stated
Study Design Support
Design supports claim
Appropriate Language Strength
definitive
Can make definitive causal claims
Assessment Explanation
Direct weight measurement under controlled conditions supports definitive causal language. The authors correctly attribute the change to glycogen, not fat.
Evidence from Studies
Supporting (0)
Contradicting (1)
Early Time-Restricted Feeding Reduces Appetite and Increases Fat Oxidation but Does Not Affect Energy Expenditure in Humans
The study looked at how eating only in the morning affects hunger and fat burning, but it didn’t measure weight loss at all — so we can’t say if people lost weight or why.