Yes, it is generally safe to take vitamin B12 supplements if you have high blood pressure. Vitamin B12 does not typically interact with blood pressure medications or affect blood pressure levels. However, it’s always best to consult your doctor before starting any new supplements, especially if you are taking medication.
What is vitamin B12?
Vitamin B12 is a water-soluble vitamin that plays a vital role in many bodily processes. It helps keep the body’s nerve and blood cells healthy and helps make DNA. Vitamin B12 also aids in the formation of red blood cells and helps prevent megaloblastic anemia.
There are several forms of vitamin B12 supplements available, including cyanocobalamin, hydroxocobalamin, methylcobalamin, and adenosylcobalamin. Cyanocobalamin is the most commonly used in supplements because it is the cheapest to manufacture. However, methylcobalamin and adenosylcobalamin may be better absorbed by some individuals.
Is it safe to take vitamin B12 if you have high blood pressure?
Yes, vitamin B12 is generally considered safe for those with high blood pressure. There is no evidence that vitamin B12 interacts negatively with blood pressure medications or causes high blood pressure when taken in the recommended doses.
In fact, one study found that giving vitamin B12 supplements to rats with hypertension actually helped lower their blood pressure. However, more research is needed to confirm if vitamin B12 could have a beneficial effect on blood pressure in humans.
The recommended daily intake of vitamin B12 for adults is 2.4 mcg. Most supplements provide a much higher amount between 500-1000 mcg. High doses of vitamin B12 are not known to cause serious side effects in healthy individuals.
As with any supplement, it’s best to start with a low dose of vitamin B12 and increase gradually as needed. Speak to your doctor to determine the appropriate dosage based on your individual health and needs.
Does vitamin B12 interact with blood pressure medications?
There are no known interactions between vitamin B12 and medications commonly prescribed for high blood pressure, such as:
- ACE inhibitors like lisinopril, ramipril
- Angiotensin II receptor blockers like losartan, valsartan
- Beta blockers like atenolol, metoprolol
- Calcium channel blockers like amlodipine, diltiazem
- Diuretics like hydrochlorothiazide, furosemide
Vitamin B12 is considered very safe to use with these medications. However, it’s still a good idea to let your doctor know about any vitamins or supplements you are taking.
Are there any precautions when taking vitamin B12?
There are a few precautions to keep in mind when taking vitamin B12:
- Vitamin B12 may impact some lab test results, so let your doctor know you are taking it before any blood work.
- Large doses of vitamin B12 could potentially mask a vitamin B12 deficiency.
- Injectable vitamin B12 could potentially interact with other medications or supplements taken at the same time.
- Tell your doctor if you have Leber’s disease, a history of gout, or any kidney or liver issues.
Certain individuals need to be cautious with vitamin B12 supplements, including:
- Those with Leber’s disease (hereditary optic nerve atrophy), as vitamin B12 may worsen vision problems.
- Those prone to gout attacks, as large doses of B vitamins may trigger an attack.
- Those with kidney dysfunction, as they may have trouble eliminating excess vitamin B12.
The bottom line
For most people, taking vitamin B12 supplements is considered safe if you have high blood pressure. Vitamin B12 does not appear to interact with blood pressure medications or negatively impact blood pressure control.
However, it’s always best to check with your doctor before starting any new supplement, especially if you take prescription medications. Your doctor can help determine the appropriate dose and form of vitamin B12 for your individual health needs.
With your doctor’s approval, adding vitamin B12 supplements to your diet may offer health benefits like improved energy, brain function, and red blood cell formation. Just be sure to stay within the recommended daily amounts and inform your healthcare provider about any supplements you take.