Supplements & nutrition
Best vegan B12 supplements in 2026
B12 is the one supplement every vegan genuinely needs, and the cheapest to get right. The market is confusing mainly because of dosing: absorption drops sharply as the dose rises, so a weekly 2000 mcg tablet and a daily 25 mcg tablet deliver similar amounts of usable B12.
Short answer
A cyanocobalamin tablet at 50 mcg daily or 2000 mcg weekly reliably covers vegan B12 needs, costs a few cents a day, and is the best-evidenced form. Methylcobalamin is fine but needs a higher dose and is less stable.
Key takeaways
- A cyanocobalamin tablet at 50 mcg daily or 2000 mcg weekly reliably covers vegan B12 needs, costs a few cents a day, and is the best-evidenced form. Methylcobalamin is fine but needs a higher dose and is less stable.
- What to check first: form: cyanocobalamin vs methylcobalamin — Cyanocobalamin is the most studied, the most stable and the cheapest. Methylcobalamin degrades faster in light and needs larger doses.
- Typical price: $8–$25 for a 3–12 month supply.
- Most common mistake: Relying on nutritional yeast or fermented foods, which are unreliable B12 sources unless fortified.
Top picks right now
Pulled live from the VeggieOS product database and ranked by ethics score — ingredient sourcing, animal testing policy, labour and packaging. Some links are affiliate links; they never affect the ranking.
How to choose a vegan B12 supplement
- Form: cyanocobalamin vs methylcobalamin
- Cyanocobalamin is the most studied, the most stable and the cheapest. Methylcobalamin degrades faster in light and needs larger doses.
- Dose matched to frequency
- Passive absorption means roughly 1% of a large dose is absorbed. Daily 25–100 mcg, or twice-weekly 1000–2000 mcg — not 5000 mcg daily.
- Delivery format
- Sublingual and chewable tablets suit people with reduced stomach acid or on metformin; regular swallowed tablets work fine for most.
- Third-party testing and vegan capsule
- Confirm the capsule is HPMC, not gelatin, and look for a published purity test.
Which one suits you
| If you want… | Buy this |
|---|---|
| Straightforward daily cover | A 50–100 mcg cyanocobalamin tablet with breakfast. |
| People who forget doses | A single 2000 mcg weekly tablet — the passive absorption route makes this work. |
| Over-65s or low stomach acid | Sublingual or spray formats, dosed daily. |
Typical price: $8–$25 for a 3–12 month supply
Mistakes to avoid
- Relying on nutritional yeast or fermented foods, which are unreliable B12 sources unless fortified.
- Buying a multivitamin with 2.4 mcg of B12 and assuming it is enough — that is the absorbed-target, not the dose-target.
- Paying a premium for methylcobalamin without a clinical reason.
Best vegan B12 supplements: frequently asked questions
Frequently asked questions
- How much B12 should a vegan take daily?
- Roughly 50–100 mcg daily of cyanocobalamin, or 2000 mcg twice weekly. Both land in the same absorbed range.
- Is cyanocobalamin safe?
- Yes. The trace cyanide is negligible — you would need thousands of tablets to approach a concern, and it is the form used in most B12 research.
- Can I get B12 from food?
- Only from fortified foods (plant milks, nutritional yeast, cereals) or supplements. No unfortified plant food is a reliable source.
- How do I know if I am deficient?
- Ask for serum B12 plus MMA or homocysteine — serum B12 alone can look normal while stores are depleted.
Check any vegan B12 supplement before you buy
Scan the barcode with VeggieOS to confirm it is vegan, see the flagged ingredients, and get an alternative if it is not.
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