correlational
Taking 3 grams of glycine before bed might help people remember things better
Scientific Claim
Glycine ingestion (3 g) before bedtime is associated with improved memory recognition task performance in individuals with chronic unsatisfactory sleep
Original Statement
“Glycine lessened daytime sleepiness and improved performance of memory recognition tasks.”
Evidence Quality Assessment
Claim Status
overstated
Study Design Support
Design supports claim
Appropriate Language Strength
association
Can only show association/correlation
Assessment Explanation
The study uses 'improved' which implies causation, but the design lacks clear randomization and blinding details, so it should be stated as association rather than causation.
Evidence from Studies
No evidence studies found yet.