How much B12 vitamin should you take daily?

The recommended daily amount of vitamin B-12 for adults is 2.4 micrograms.

Can I take 1000 mcg of B12 a day?

The most common treatment for pernicious anemia is lifelong vitamin B12 injections, but small amounts of vitamin B12 are absorbed without intrinsic factor. One review concluded that taking 1,000 mcg daily is an effective alternative to injections ( 42 ).

Is 1000 IU of B12 too much?

A dose of 1,000 mcg or more is considered a high dose of vitamin B12, which is about 400% of the daily requirement of 2.4 mcg.

What are the side effects of B12 1000 mcg?

Is it OK to take vitamin B12 daily?

Vitamin B12 is an essential nutrient. Fish, shellfish, meat, eggs, and dairy products are good sources of vitamin B12. The amount that should be consumed on a daily basis is called the recommended dietary allowance (RDA). The RDA is 2.4 mcg daily for people 18 years and older.

Vitamin B12 Deficiency Symptoms That Should Never Be Ignored

What is vitamin B12 1000 mcg good for?

Vitamin B12 is a nutrient that helps keep your body's blood and nerve cells healthy and helps make DNA, the genetic material in all of your cells. Vitamin B12 also helps prevent megaloblastic anemia, a blood condition that makes people tired and weak.

How much B12 should a 50 year old woman take?

The latest guidelines recommend 2.4 micrograms per day of vitamin B12 for those aged 51 and older. Most daily multiple vitamins supply this amount.

How much B12 does a woman need?

Who needs more B12? Most women get the recommended daily amount — 2.4 micrograms (mcg) for most adults, 2.6 mcg for pregnant women, and 2.8 mcg for women who are breastfeeding — in their diets.

When should I take B12 morning or night?

As a general rule of thumb, take your B vitamins in the morning or with a meal. Vitamin B12, for example, should definitely be taken in the morning. This is because it is important for energy metabolism, which may interrupt your sleep if taken at night.

What are the symptoms of B12 deficiency?

What medications should not be taken with B12?

Certain medications can decrease the absorption of vitamin B12, including: colchicine, metformin, extended-release potassium products, antibiotics (such as gentamicin, neomycin, tobramycin), anti-seizure medications (such as phenobarbital, phenytoin, primidone), medications to treat heartburn (such as H2 blockers ...

Does B12 raise blood pressure?

We found that a higher intake of vitamin B12 was associated with lower systolic and diastolic blood pressure and a higher intake of folic acid was associated with lower systolic blood pressure in children.

Can a senior take too much B12?

Dosages for Older People

By taking supplements, you will ensure that your body absorbs vitamin B12. Additionally, there is no way that you will overdose on B12, so don't worry about taking too much.

How much B12 does a senior need?

What's the recommended dosage of vitamin B12 for seniors? The recommended daily allowance of vitamin B12 for adults is 2.4 micrograms. Experts have estimated that a Western diet contains 5-7 micrograms of vitamin B12, and a multivitamin often contains 12-25 micrograms.

Is 5000 mcg of vitamin B12 too much to take?

Since B12 is a water-soluble vitamin, it's generally considered safe, even at high doses. No Tolerable Upper Intake Level (UL) has been established for B12, due to its low level of toxicity. UL refers to the maximum daily dose of a vitamin unlikely to cause adverse side effects in the general population.

Which vitamin B12 is best?

For prevention and treatment of vitamin B12 deficiency, cyanocobalamin in chewable, sublingual, or liquid forms (rather than in a multivitamin) is best under most circumstances.

What happens when vitamin B12 is very high?

High. An abnormally high vitamin B-12 status is anything over 900 pg/mL. This result may suggest liver or kidney problems, diabetes, or certain forms of leukemia.

Does B12 affect bowel movements?

However, some people may experience constipation as a result of a vitamin deficiency, such as vitamin B-12 deficiency. In those situations, a vitamin supplement may help relieve constipation. Some vitamins and minerals can cause loose stools or diarrhea, including magnesium and vitamin C.

Can you take B12 with blood pressure meds?

No interactions were found between lisinopril and Vitamin B12.

Can vitamin B12 cause heart problems?

Macrocytosis associated with vitamin B12 deficiency is also associated with fatal and non-fatal coronary disease, myocardial infarction, stroke, and other circulatory health problems.

Can B12 cause heart palpitations?

There are a variety of symptoms that come with a B12 deficiency. One sign associated with the condition is experiencing heart palpitations. “Your heart may feel like it's pounding, fluttering or beating irregularly, often for just a few seconds or minutes.

Does vitamin B12 lower cholesterol?

They found that low levels of vitamin B12 were associated with higher levels of total cholesterol, LDL (bad) cholesterol, and triglycerides—even after adjusting for the effects that body mass index, abdominal fat, and total body fat percentage have on the body.

What vitamins should I not take together?

How long does it take for vitamin B12 to work?

It may take a few weeks before your vitamin B12 levels and symptoms (such as extreme tiredness or lack of energy) start to improve. If you have hydroxocobalamin injections to boost your vitamin B12 levels at the start of treatment, the cyanocobalamin tablets may start to work within a few days.