The short answer · Vitamin B12 status
Take methylcobalamin for vitamin b12 status. This is the one to buy.

NOW Foods, Methyl B-12, 1,000 mcg, 100 Lozenges
4.8· 27,638 ratings· $0.07/serving
Methylcobalamin 1 mg — inside the studied 0.5-5 mg window
Of 3,350 products scored for Vitamin B12 status, NOW Foods, Methyl B-12, 1,000 mcg, 100 Lozenges ranks #1 with a DoseRank score of 87. Methylcobalamin is the strongest evidence signal for this outcome.
Retailer links may be affiliate links. Rankings and placement are never paid.
The form“Why Methylcobalamin — not Cyanocobalamin?”Evidence Strong evidence
Methylcobalamin is the strongest evidence signal for this outcome.
- MethylcobalaminThe pick
Strong evidence · 1 mg
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.
- Cyanocobalamin
Strong evidence · 1 mg
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.
The dose“Is the dose actually effective?”Dose fit 69
Methylcobalamin at 1 mg lands inside the studied 0.5-5 mg window.
Methylcobalamin
Studied window 0.5-5 mg · this pick 1 mg
The ranking“Why should I trust this pick?”Trust 95
Strong trust signals — consistently high marks from verified buyer ratings. Each product gets a DoseRank score blending clinical strength, evidence, dose fit, trust and value. Retailer links may be affiliate links — the scoring model decides placement, never payment from a brand.
- 3,350 products scored
- Never paid placement
- Evidence level: Strong · 92
- 333 brands
- 11 ingredients
The price“Can I do better than $0.07 a serving?”Value 87
$0.07 per serving — low price tier for this outcome. The cheapest ranked pick here is $0.06 per serving.
- 2NOW Foods, B-12, 100 LozengesScore 87 · $0.06/servingiHerb
- 5Life Extension, Vitamin B12, Methylcobalamin, 500 mcg, 100 Vegetarian LozengesScore 87 · $0.06/servingiHerb
Why not the absolute cheapest? The DoseRank score also weighs clinical strength, evidence, dose fit and trust — the very cheapest listings rarely hold up everywhere else.
Ready?
The #1 pick is $0.07 a serving.NOW Foods, Methyl B-12, 1,000 mcg, 100 Lozenges — in stock at a tracked retailer.
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NOW Foods, Methyl B-12, 1,000 mcg, 100 Lozenges 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 3,350 products scored for this outcome.