Is it worth taking vitamin B12?

An essential vitamin
B12 (also known as cobalamin) is essential for keeping your brain and nerves healthy and for making DNA and red blood cells. B12 also helps lower levels of homocysteine, an amino acid linked (in high levels) to dementia, heart disease, stroke, and osteoporosis.


Is it worth taking vitamin B12 supplements?

Most people get enough vitamin B-12 from a balanced diet. However, older adults, vegetarians, vegans and people who have conditions that affect their ability to absorb vitamin B-12 from foods might benefit from the use of oral supplements.

Is B12 good to take 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.


Is there a downside to taking B12?

However, supplementing with excessively high levels of B12 has been linked to some negative side effects. Several studies have shown that megadoses of the vitamin can lead to outbreaks of acne and rosacea, a skin condition that causes redness and pus-filled bumps on the face.

Who should not take B12 supplements?

Who should not take VITAMIN B-12?
  • low amount of potassium in the blood.
  • Leber's hereditary optic atrophy.
  • inflammation of the stomach called atrophic gastritis.
  • past history of complete removal of stomach.


Ask Dr. Nandi: Should you take Vitamin B12 to boost mood?



Is it OK to take 1000 mcg B12 daily?

If you are low in vitamin B12, a common recommended dose for oral supplements is about 1,000 mcg daily. But you should make sure to ask your healthcare provider about how much vitamin B12 you should look for in a supplement.

What does low B12 feel like?

Constipation, diarrhea, loss of appetite, or gas. Nerve problems like numbness or tingling, muscle weakness, and problems walking. Vision loss. Mental problems like depression, memory loss, or behavioral changes.

What happens when you start taking B12?

May give you an energy boost

On the other hand, if you're significantly deficient in vitamin B12, taking a supplement or increasing your intake will likely improve your energy level ( 32 ). In fact, one of the most common early signs of vitamin B12 deficiency is fatigue or lack of energy ( 2 ).


Does B12 give you energy?

So does vitamin B12 give you energy? While B12 doesn't directly provide energy, it does give the body the tools it needs to convert food molecules into energy. Getting the recommended daily amount of B12 can therefore help ensure that the body is able to make the energy it needs to do everything you need it to do.

What damage can vitamin B12 do?

A lack of vitamin B12 can cause neurological problems, which affect your nervous system, such as: vision problems. memory loss. pins and needles (paraesthesia)

How long does it take for B12 to start working?

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.


Who should take vitamin B12?

Adults (aged 19 to 64) need about 1.5 micrograms a day of vitamin B12. If you eat meat, fish or dairy foods, you should be able to get enough vitamin B12 from your diet. But as vitamin B12 is not found naturally in foods such as fruit, vegetables and grains, vegans may not get enough of it.

What happens if your B12 is too high?

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. Pregnant and breastfeeding women may also need to be especially mindful of B12 levels.

Do B12 supplements make a difference?

Research has not shown that any form of supplemental vitamin B12 is better than the others. The amount of vitamin B12 in supplements varies widely. Some provide doses of vitamin B12 that are much higher than recommended amounts, such as 500 mcg or 1,000 mcg, but your body absorbs only a small percentage of it.


How can I increase my B12 naturally?

To increase the amount of vitamin B12 in your diet, eat more of foods that contain it, such as:
  1. Beef, liver, and chicken.
  2. Fish and shellfish such as trout, salmon, tuna fish, and clams.
  3. Fortified breakfast cereal.
  4. Low-fat milk, yogurt, and cheese.
  5. Eggs.


How often should you take B12 pills?

One review recommended that those with vitamin B12 deficiency take 1 mg of vitamin B12 daily for a month, followed by a maintenance dose of 125–250 mcg per day ( 21 ).

What is the best vitamin for tiredness?

The 5 Best Vitamins for Energy & Tiredness
  • Vitamin B1 (Thiamin) ...
  • Vitamin B2 (Riboflavin) ...
  • Vitamin B3 (Niacin) ...
  • Vitamin B5 (Pantothenic acid) ...
  • Vitamin B6 (Pyridoxine)


How do you feel after taking B12?

The most common B12 shot side effect is swelling at the injection site. Some people also experience mild diarrhea. Call your doc ASAP if you notice any negative B12 shot side effects.

Why do I get tired when I take B12?

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. Go see your doctor to get the proper diagnosis and treatment.

Can I take vitamin B12 without doctor?

However, it is not recommended to consume vitamin B12 supplements without consulting a doctor as they can interfere with some other medicines.


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.

Does B12 help hair growth?

One of those vital nutrients is B12, also known as cobalamin. B12 promotes healthy hair growth by assisting in the production of oxygen-rich red blood cells, which feed hair follicles.

What are the signs of lacking vitamin B?

Vitamin B12 deficiency can cause the following symptoms:
  • tiredness or fatigue.
  • weakness.
  • constipation.
  • loss of appetite.
  • weight loss.
  • numbness and tingling in the hands and feet.
  • balance problems.
  • confusion.


What is the most common cause of B12 deficiency?

Diet. Some people can develop a vitamin B12 deficiency as a result of not getting enough vitamin B12 from their diet. A diet that includes meat, fish and dairy products usually provides enough vitamin B12, but people who do not regularly eat these foods can become deficient.
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