Top pick · DoseRank
Why this ranks #1 for constipation
#1
NOW Foods, Magnesium Citrate, 200 mg, 250 Tablets
NOW Foods$0.19 / serving4.8 · 20,859Available now
Why this ranks here
- Evidence fitMagnesium Citrate is the strongest evidence signal for this outcome.
- Dose fitMagnesium Citrate at 400 mg lands inside the studied 300-1000 mg window.
- Price / serving$0.19 per serving — low price tier for this outcome.
- AvailabilityIn stock across major retailers; 99% availability confidence.
- TrustStrong trust signals — consistently high marks from verified buyer ratings.
Trade-offs
Dose fit is the weak spot on this list
The numbers
87
89
70
82
400 mgIn rangeinside the studied 300-1000 mg window