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Scored forOutcome alternatives
Swanson Vitamins20 count • 20 servingsAvailable now$22.49$1.12 / servingn/a
44−50 pts from leader
#2589 of 7239 ranked for sleep qualityLeader · Source Naturals, Source Naturals, Sleep Science®, NightRest™ With Melatonin, 100 Tablets — 94
Why this ranks #2589 for sleep quality
- Evidence fitGlycine and L-Serine have moderate human evidence for this outcome.
- Dose fit0 of 2 dosed ingredients land in the studied range. Glycine at 2220 mg is higher than the studied 3-5 g window.
- Price / serving$1.12 per serving — high price tier for this outcome.
- AvailabilityIn stock across major retailers; 99% availability confidence.
- TrustLimited trust signals so far for this listing.
Trade-offsDose fit is the weak spot on this listPopularity trails the other picks here
The numbers · Sleep qualityWhat's inside
44
51
20
64
2220 mgAbove rangehigher than the studied 3-5 g window
320 mgBelow rangebelow the studied 3000-3000 mg window
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