Eating all your meals before 2 p.m. for a few days lowers the hunger hormone in your body, making you feel less hungry and more steady in your appetite.
Scientific Claim
Early time-restricted feeding (eating between 8 a.m. and 2 p.m.) for four days reduces mean circulating active ghrelin levels by 32 ± 10 pg/mL in overweight adults, which is associated with decreased hunger and more stable appetite patterns throughout the day.
Original Statement
“eTRF decreased mean ghrelin levels by 32±10 pg/mL (p=0.006), made hunger more even-keeled (p=0.006), and tended to increase fullness (p=0.06-0.10) and decrease the desire to eat (p=0.08).”
Evidence Quality Assessment
Claim Status
appropriately stated
Study Design Support
Design supports claim
Appropriate Language Strength
definitive
Can make definitive causal claims
Assessment Explanation
The study is a randomized controlled trial with direct hormone measurement under controlled conditions, allowing definitive causal language. The effect size and p-value are clearly reported.
Evidence from Studies
Supporting (1)
Early Time-Restricted Feeding Reduces Appetite and Increases Fat Oxidation but Does Not Affect Energy Expenditure in Humans
This study found that eating only between 8 a.m. and 2 p.m. for four days made people feel less hungry and more satisfied, because a hunger hormone called ghrelin dropped by exactly the amount claimed.