The claim “Cardiologists warn: never take B12 with these 2 medications after 60” is misleading. Vitamin B12 is not generally considered dangerous to take with common medications, but some medicines can affect B12 absorption or levels, which may require monitoring.
Two medication groups often mentioned are:
1. Metformin (for type 2 diabetes)
- Long-term metformin use can reduce vitamin B12 absorption in some people.
- Older adults taking metformin may be advised to have their B12 levels checked, especially if they develop:
- Numbness or tingling
- Balance problems
- Unusual fatigue
- Anemia
2. Acid-reducing medicines (for reflux/heartburn)
Examples include proton pump inhibitors (PPIs) and some other acid reducers.
- Stomach acid helps release B12 from food, so long-term use may contribute to lower B12 levels in some people.
The key point:
These medicines do not usually mean you must avoid B12. In many cases, B12 supplementation is used specifically because a medication may lower B12 levels.
Before starting high-dose supplements, it’s a good idea to:
- Review your medications with a doctor or pharmacist.
- Check whether you actually have a B12 deficiency.
- Use the dose recommended for your situation.
If you tell me the two medications named in the warning (or list the medicines you take), I can explain whether there is a real interaction.
