Top pick · DoseRank
Why this ranks #1 for mean corpuscular volume
Doctor's Best, Fully Active B12, 1,500 mcg, 180 Veggie Caps
Why this ranks here
- Evidence fitMethylcobalamin is the strongest evidence signal for this outcome.
- Dose fitMethylcobalamin at 1500 mcg lands inside the studied 1000-5000 µg window.
- Price / serving$0.08 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
The numbers