Does Golden Kiwi Sleep Quality Randomized Trial work?

The current Migaku evidence database contains 2 reusable source documents for Golden Kiwi Sleep Quality Randomized Trial. This answer focuses on strength of evidence and what the studies can or cannot prove. - Conclusion CP supplementation did not influence sleep quantity, latency, or efficiency, but reduced awakenings and improved cognitive function in physically active males with sleep complaints. [Thomas C (2023); evidence level 4] - Purpose The primary aim of this study was to examine whether a glycine-rich collagen peptides (CP) supplement could enhance sleep quality in physically active men with self-reported sleep complaints. [Thomas C (2023); evidence level 4] - Methods In a randomized, crossover design, 13 athletic males (age: 24 ± 4 years; training volume; 7 ± 3 h·wk 1 ) with sleep complaints (Athens Insomnia Scale, 9 ± 2) consumed CP (15 g·day 1 ) or a placebo control (CON) 1 h before bedtime for 7 nights. [Thomas C (2023); evidence level 4] Evidence levels are sorting aids, not final clinical grades. Level 1 usually indicates systematic-review style evidence, level 2 indicates randomized trials or public-health guidance, and lower levels need more cautious wording. This page is educational. People with medical conditions, pregnancy, medication use, or unusual symptoms should ask a qualified clinician before changing supplements, medication, or treatment routines.