Is it OK to take 1000 mcg of B12 a week?

In one 8-week study in 100 older adults, supplementing with 500 mcg of vitamin B12 were found to normalize B12 levels in 90% of participants. Higher doses of up to 1,000 mcg (1 mg) may be necessary for some ( 10 ).

How much B12 should you take a week?

Eat fortified foods two or three times a day to get at least three micrograms (mcg or µg) of B12 a day. OR Take one B12 supplement daily providing at least 10 micrograms. OR Take a weekly B12 supplement providing at least 2000 micrograms.

What is 1000 mcg B12 used for?

Cyanocobalamin is a man-made form of vitamin B12 used to treat low levels (deficiency) of this vitamin. Vitamin B12 helps your body use fat and carbohydrates for energy and make new protein. It is also important for normal blood, cells, and nerves.

Is B12 1000mg safe?

Though doses of up to 2,000 mcg of vitamin B12 are considered safe, it’s best to speak to a doctor to find out whether taking a supplement is necessary. Most people can fill their B12 needs through a healthy diet. Some, such as older adults or those with certain dietary restrictions, should supplement.

Is it safe to take vitamin B12 daily?

When taken at appropriate doses, vitamin B-12 supplements are generally considered safe. While the recommended daily amount of vitamin B-12 for adults is 2.4 micrograms, higher doses have been found to be safe. Your body absorbs only as much as it needs, and any excess passes through your urine.

Is B12 good to take every day?

Some people recommend that if you are a vegan and/or you are pregnant or nursing, take 5 micrograms of vitamin B12 every day from pills. The recommended amount of Vitamin B12 is 2.4 micrograms per day, although to be on the safe side and for optimum nutrition aim for 10 micrograms per day.

Does B12 actually make you more energetic?

Vitamin B-12 has a big role in stabilizing your energy levels. It actually helps give you more energy, rather than making you tired. If you do notice feeling a little fatigued, even though you’re regularly taking a B-12 supplement, it’s likely a sign of something else that is out of the norm in your body.

Is 2500 MCG of B12 too much?

Vitamin B12: In B12 deficiency, doses of 300-10, 000 mcg (microgram) by mouth daily have been used. 2500 mcg per day is not too much. …Read more.

What happens when B12 is too high?

It is, however, important to note that too much B12 may cause issues in certain cases. In some people, high levels of B12 may cause gastrointestinal problems such as bloating and diarrhea. And if you have high blood pressure or poor cardiovascular health, having too much B12 may further complicate these issues.