How do I know if I need more B12?

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.
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Can you check your B12 levels at home?

There are several ways to test your B-12 levels. You can get your blood drawn or take a home urine test. These tests will look at the levels of your: overall vitamin B-12.
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How do I know how much B12 I need?

The recommended daily amount of vitamin B-12 for adults is 2.4 micrograms.
...
Research on the use of vitamin B-12 for specific activities and conditions shows:
  1. Heart and blood vessel disease. ...
  2. Dementia. ...
  3. Athletic performance.
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What happens when your vitamin B12 is low?

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.
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Can you take too much vitamin B12?

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.
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Vitamin B12 Deficiency Symptoms (ex. Depression), Why symptoms happen, Schilling’s test, Treatment



How can I raise my B12 levels fast?

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.
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How much B12 vitamin should you 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.
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What is a normal B12 level for a woman?

Normal values are 160 to 950 picograms per milliliter (pg/mL), or 118 to 701 picomoles per liter (pmol/L).
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How long does it take to get B12 levels up?

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.
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How is B12 deficiency diagnosed?

How is vitamin B12 deficiency anemia diagnosed? This type of anemia is usually found during a medical exam through a routine blood test. Your healthcare provider will take your medical history and give you a physical exam. Your provider may give you additional blood tests.
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Is it OK to take 1000 mcg B12 daily?

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 ).
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What is the best form to take B12?

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.
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What foods to avoid if you have B12 deficiency?

Research has suggested that the consumption of alcohol may reduce vitamin B12 levels. An older study indicated that moderate alcohol intake diminished vitamin B12 by 5% among “healthy, well-nourished, postmenopausal women.” Alcohol-related liver disease may falsely increase vitamin B12 test levels.
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What food is highest in B12?

What foods are high in vitamin B12?
  • Vitamin B12 is found in: Milk. ...
  • Fortified cereals. If you identify as a vegan or vegetarian, some cereals are a great source of vitamin B12. ...
  • Eggs. “Egg yolks contain more vitamin B12 than egg whites,” says Taylor. ...
  • Yogurt. ...
  • Salmon. ...
  • Tuna. ...
  • Beef. ...
  • Liver and kidneys.
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Are B12 injections better than tablets?

Which is better—the B12 pill or the shot? A. Low B12 can cause anemia and fatigue. For many people with low B12 levels, a daily supplement in the form of a pill is as effective as taking a monthly muscle injection.
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Is banana rich in B12?

"It contains high amounts of vitamin B6 and B12, as well as magnesium and potassium. It also contains some fiber and protein." According to a 2011 article in the journal of Applied Biochemistry and Biotechnology, banana peels also have "various bioactive compounds like polyphenols, carotenoids and others."
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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.
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What are the signs of a deficiency?

Symptoms
  • Fatigue.
  • Shortness of breath.
  • Dizziness.
  • Pale or yellowish skin.
  • Irregular heartbeats.
  • Weight loss.
  • Numbness or tingling in the hands and feet.
  • Muscle weakness.
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How do I know what vitamins Im lacking?

8 Common Signs You're Deficient in Vitamins
  1. Brittle hair and nails. ...
  2. Mouth ulcers or cracks in the corners of the mouth. ...
  3. Bleeding gums. ...
  4. Poor night vision and white growths on the eyes. ...
  5. Scaly patches and dandruff. ...
  6. Hair loss. ...
  7. Red or white bumps on the skin. ...
  8. Restless leg syndrome.
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How do you check vitamin B levels?

Vitamin B levels may be checked in blood or urine. During a blood test, a health care professional will take a blood sample from a vein in your arm, using a small needle. After the needle is inserted, a small amount of blood will be collected into a test tube or vial.
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Why should you never eat bananas?

Eating too many bananas may have detrimental health effects, such as weight gain, poor blood sugar control, and nutrient deficiencies.
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What helps B12 absorption?

In the stomach, hydrochloric acid and enzymes unbind vitamin B12 into its free form. From there, vitamin B12 combines with a protein called intrinsic factor so that it can be absorbed further down in the small intestine. Supplements and fortified foods contain B12 in its free form, so they may be more easily absorbed.
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Are there any side effects with B12 injections?

Common side effects

pain, swelling or itchy skin where your injection was given. feeling or being sick (nausea or vomiting) diarrhoea. headaches.
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How long does a B12 shot last?

If your vitamin B12 deficiency is not caused by a lack of vitamin B12 in your diet, you'll usually need to have an injection of hydroxocobalamin every 2 to 3 months for the rest of your life.
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