The short answer · Vitamin B12 status
Take cyanocobalamin for vitamin b12 status. This is the one to buy.
21st Century, Vitamin B-12, Cherry, 2,500 mcg, 110 Tablets
4.7· 5,053 ratings· $0.08/serving
Cyanocobalamin 2500 mcg — higher than the studied 500-2000 µg window
Of 3,527 products scored for Vitamin B12 status, 21st Century, Vitamin B-12, Cherry, 2,500 mcg, 110 Tablets ranks #1 with a DoseRank score of 87. Cyanocobalamin is the strongest evidence signal for this outcome.
The form“Why Cyanocobalamin — not Methylcobalamin?”Evidence Strong evidence
Cyanocobalamin is the strongest evidence signal for this outcome.
- CyanocobalaminThe pick
Strong evidence · 2500 mcg
Synthetic B12 form, stable and inexpensive; must be converted to active coenzymes in the body, and those with MTHFR variants or poor conversion may respond better to methylcobalamin.
- Methylcobalamin
Strong evidence · 1500 mcg
Active, coenzyme form of vitamin B12 that doesn't require hepatic conversion; preferred for neurological support and often recommended when conversion from cyanocobalamin is impaired.
The dose“Is the dose actually effective?”Dose fit 91
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21st Century, Vitamin B-12, Cherry, 2,500 mcg, 110 Tablets ranks #1 for Vitamin B12 status with a DoseRank score of 87. The score blends clinical strength, evidence, dose fit, trust signals and value across 3,527 products scored for this outcome.
Cyanocobalamin is the strongest evidence signal for this outcome.
Cyanocobalamin at 2500 mcg is higher than the studied 500-2000 µg window. DoseRank scores this product's dose fit at 91 out of 100.
21st Century, Vitamin B-12, Cherry, 2,500 mcg, 110 Tablets works out at $0.08 per serving. $0.08 per serving — low price tier for this outcome. The cheapest ranked pick here is $0.05 per serving.
No. Retailer links may be affiliate links, but rankings and placement are never paid. Every product is scored by the same public model, and the ranking is recomputed from the underlying product data rather than edited by hand.