Understanding the interactions, benefits, and safety of combining these two powerful supplements.
We found no direct interaction between Berberine and Vitamin B12 in the sources below, but they share a caution.
Both have a note about diabetes medicines (see each one below).
What it is: A compound from plants such as barberry and goldenseal, used in Chinese and Ayurvedic medicine.
What the research says: It may lower cholesterol, triglycerides and blood sugar, but the effect may be small and lifestyle changes are still needed.
In Holitro: Berberine 500mg (500 mg per capsule)
Source: Memorial Sloan Kettering Cancer Center, About Herbs: Berberine (updated June 2023)
What it is: A vitamin that keeps blood and nerve cells healthy and helps make DNA.
What the research says: B12 prevents a type of anemia that makes people tired and weak. People who take metformin or long-term acid reducers may absorb less of it.
In Holitro: Vitamin B12 (1000 mcg per capsule)
Source: NIH Office of Dietary Supplements: Vitamin B12: Fact Sheet for Consumers (updated December 2023)
Check with your doctor or pharmacist, especially if you take medication.
Check your stack — freeEducational information only, not medical advice. This reflects general ingredient overlap, not a personalized safety review. Always check with your doctor or pharmacist before combining supplements, especially if you take medication, are pregnant or nursing, or manage a health condition. These statements have not been evaluated by the FDA.
Balancing dosages across multiple different bottles is risky, inefficient, and expensive. Taking too much of one can blunt the absorption of the other.
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