causal
Taking 3 grams of glycine before bed doesn't make people feel sleepy during the day.
Scientific Claim
A single 3g dose of glycine before bedtime does not produce acute daytime sleepiness in adults with chronic poor sleep.
Original Statement
“We have previously reported that glycine ingestion during daytime does not produce acute sleepiness.”
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 references previous research that directly tested this claim and found no acute sleepiness with glycine ingestion during daytime. This is consistent with the current study's findings.
Evidence from Studies
Supporting (1)
0
Contradicting (0)
0
No contradicting evidence found