Cardiologist Warns: What Older Adults Should Know About Vitamin B12 and Medication Interactions
The claim that you should “never take B12 with these 2 common medications after 60” is an oversimplification. Vitamin B12 is an important nutrient for nerve function, red blood cell production, and overall health, and many older adults may have lower B12 levels. However, some medications can affect B12 absorption or require monitoring.
Here are two common medication categories that are often discussed:
1. Metformin (commonly used for type 2 diabetes)
Metformin can reduce the absorption of vitamin B12 in some people, especially with long-term use.
Possible signs of low B12 include:
- Tingling or numbness in the hands and feet
- Balance problems
- Unusual tiredness
- Weakness
- Memory or concentration difficulties
People taking metformin for years may benefit from having their B12 levels checked periodically.
2. Acid-reducing medications (such as proton pump inhibitors)
Medicines that reduce stomach acid can make it harder for the body to absorb B12 from food because stomach acid helps release B12 from proteins.
Examples include some medicines used for:
- Acid reflux
- Heartburn
- Stomach ulcers
Long-term users may need their B12 status reviewed by a healthcare professional.
Does This Mean You Should Stop B12 or Your Medication?
No. Many people safely take vitamin B12 supplements while using these medications. The important steps
