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.


What disease is associated with a deficiency of B12?

Pernicious anemia, a deficiency in the production of red blood cells due to a lack of vitamin B12, can cause permanent neurological damage that can lead to death if it is untreated.

What happens when your body is low on vitamin B12?

Key points about vitamin B12 deficiency anemia

Without enough red blood cells, your tissues and organs don't get enough oxygen. Without enough oxygen, your body can't work as well. Symptoms include weak muscles, numbness, trouble walking, nausea, weight loss, irritability, fatigue, and increased heart rate.


Who is most likely to be deficient in B12?

According to an analysis of NHANES data from 2015–2016, people of low socioeconomic status, women, and non-Hispanic Blacks are most likely to have low vitamin B12 intakes [32].

How long does it take to recover from B12 deficiency?

Once you begin treating your vitamin B12 deficiency, it can take up to six to 12 months to fully recover. It is also common to not experience any improvement during the first few months of treatment. If you can, it's a good idea to address what's causing the deficiency.


Causes of Vitamin B12 Deficiency | In-Depth Overview including Medications, Diseases & Fish Tapeworm



What is the fastest way to fix B12 deficiency?

You can change your diet to include vitamin B12-fortified grains, a supplement or B12 injections, or a high-dose oral vitamin B12 if you are deficient. Older adults who have a vitamin B12 deficiency will likely have to take a daily B12 supplement or a multivitamin that contains B12.

Should I worry about B12 deficiency?

Most healthy people who have a well-balanced diet do not need to worry much about vitamin B12 deficiency. However, for those at risk (such as those with celiac disease), measures of blood vitamin B12 levels and, in some cases, preventive therapy with vitamin B12 may be recommended.

What eating pattern is at greatest risk for B12 deficiency?

Avoiding animal products.

People who do not eat meat, fish, poultry, or dairy are at risk of becoming deficient in vitamin B12, since it is only found naturally in animal products. Studies have shown that vegetarians have low vitamin B blood levels.


Can low B12 make you feel weird?

A lack of B12 may lead to depression, confusion, memory problems, and dementia. It also can affect your balance. B12 supplements are usually safe.

What medications should not be taken with B12?

Possible interactions include:
  • Aminosalicylic acid (Paser). Taking this drug used to treat digestive problems might reduce your body's ability to absorb vitamin B-12.
  • Colchicine (Colcrys, Mitigare, Gloperba). ...
  • Metformin (Glumetza, Fortamet, others). ...
  • Proton pump inhibitors. ...
  • Vitamin C (ascorbic acid) supplements.


What meat is best for B12?

Animal liver and kidneys

Organ meats are some of the most nutrient-packed foods. Liver and kidneys, especially from lamb, are rich in vitamin B12. A 3.5-ounce (100-gram) serving of lamb liver provides an incredible 3,571% of the Daily Value (DV) for vitamin B12 ( 1 ).


What causes B12 deficiency in older adults?

Mild vitamin B12 deficiency in otherwise healthy individuals can result from dietary patterns that result in insufficient dietary intake of animal source foods including strict vegetarian and vegan diets, or can be caused by changes in stomach function resulting from aging and/or pharmaceutical use [12].

What is the fastest way to increase B12?

Good sources of vitamin B12
  1. meat.
  2. fish.
  3. milk.
  4. cheese.
  5. eggs.
  6. some fortified breakfast cereals.


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

There is no risk of an overdose when taking large amounts of vitamin B-12 such as 1000 mcg, because it is a water-soluble vitamin. Meaning the body will use the amount that it needs then the excess will be excreted through urine.


How long does a B12 injection last?

Simply put, how long the B12 shot will last is different for everyone. Though it differs a bit from one person to another, the effects of B12 vitamins usually last around 48 hours to 72 hours after the initial injection.

Can B12 deficiency cause joint pain?

Not getting enough vitamin B12 to the point of a deficiency can cause a variety of serious symptoms including depression, joint pain, and fatigue.

What deficiency causes weakness in legs?

Muscle weakness due to vitamin D deficiency is predominantly of the proximal muscle groups and is manifested by a feeling of heaviness in the legs, tiring easily, and difficulty in mounting stairs and rising from a chair; the deficiency is reversible with supplementation (15–18).


Do B12 injections work?

Vitamin B12 Shots Are Very Effective

Injections are usually given as hydroxocobalamin or cyanocobalamin. These are very effective at raising blood levels of B12 and preventing/reversing a deficiency. Bottom Line: If you are deficient in vitamin B12, then the injections are very effective at raising your blood levels.

What vegetable has the most vitamin B12?

Potatoes are full of rich nutrients. Potato is one of the best vegetables for vitamin B12.

Are eggs good for B12?

One hard-boiled egg has about 0.6 micrograms of B12. That's 25% of your daily value. But you'll need to eat the whole egg. Most of the B12 comes from the yolk.


Which vitamin is for hair fall?

Only riboflavin, biotin, folate, and vitamin B12 deficiencies have been associated with hair loss.

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.

How much vitamin B12 should a senior take?

Recommended Vitamin B12 Dosage for Seniors

A recent study found that for seniors, a daily dose of 500 micrograms was efficient in reversing the signs of B12 deficiency. In general, experts recommend 2.5 micrograms of vitamin B12 per day for people over the age of 14.


What is normal level of vitamin B12 in elderly?

A serum vitamin B12 level between 200 pg/mL and 900 pg/mL is considered normal, but a threshold of 300 to 350 pg/mL is recognized as a marker for a desirable status in the elderly.