Can I Take These?

Can You Take Probiotics and Vitamin B12 Together?

No documented interaction was identified between probiotics and vitamin B12 in the sources reviewed.

No documented interaction identifiedEvidence: Moderate

What the interaction means

NCCIH's probiotics page does not mention vitamin B12. The NIH ODS vitamin B12 fact sheet does not mention probiotics.

No documented interaction was identified in the authoritative sources reviewed. This is not a guarantee that no interaction exists for every dose, formulation, or individual -- it means the sources checked did not document one.

Practical context

Both substances' own current authoritative sources were checked directly, full text, in both directions.

What the sources say

Vitamin B12 — Consumer — NIH Office of Dietary SupplementsProbiotics: What You Need To Know — National Center for Complementary and Integrative Health (NIH)

Last reviewed 2026-08-23

Medical information disclaimer: this information is general and educational. It does not diagnose conditions, prescribe treatment, or determine whether a combination is safe for you personally. Follow your prescription label and ask a pharmacist or clinician before starting, stopping, or combining products. Full disclaimer.

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