How much vitamin B12 should I take for anemia?

Left untreated, a vitamin B-12 deficiency can lead to anemia, fatigue, muscle weakness, intestinal problems, nerve damage and mood disturbances. The recommended daily amount of vitamin B-12 for adults is 2.4 micrograms.


How many mg of B12 should I take for anemia?

Daily vitamin B12 turnover rate is about 2 μg/day, so an oral dose of 100–250 μg/day is sufficient for normal patients. However, in view of the estimated 1% of total absorption via passive diffusion in patients with pernicious anemia, a 1000 μg daily dose is recommended.

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.


Should I take B12 if I'm anemic?

Vitamin B12–deficiency anemia, also known as cobalamin deficiency, is a condition that develops when your body can't make enough healthy red blood cells because it doesn't have enough vitamin B12. Your body needs vitamin B12 to make healthy red blood cells, white blood cells, and platelets.

Is it OK to take 5000 mcg B12 daily?

There is no upper limit for vitamin B12, and most supplements provide between 500 mcg to 5,000 mcg of B12 daily to meet various nutritional needs [2].


Vitamin B12 Supplements - What Type And How Much To Take



What happens if I take too much B12?

Your body absorbs only as much as it needs, and any excess passes through your urine. High doses of vitamin B-12, such as those used to treat a deficiency, might cause: Headache. Nausea and vomiting.

How much B12 mg is too much?

Is taking high doses of B12 helpful or harmful? 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.

Does B12 boost your iron?

Related Articles. The relationship among vitamin B-12, folate and iron is a good example of the complex way in which some essential nutrients help keep your body healthy. Vitamin B-12 is indirectly responsible for raising your blood iron level to keep it in a healthy range.


Does B12 boost hemoglobin?

A significant increase in hemoglobin appeared from very low vitamin B12 concentration and up to approx. 400 pg/mL, while hemoglobin did not significantly change from 700 pg/mL and onwards. Vitamin B12 injections were used by 34% of athletes, significantly more often by endurance than by strength athletes.

What vitamins should I take for anemia?

Overview. Vitamin deficiency anemia is a lack of healthy red blood cells caused by lower than usual amounts of vitamin B-12 and folate. This can happen if you don't eat enough foods containing vitamin B-12 and folate, or if your body has trouble absorbing or processing these vitamins.

What happens if you take 1000 mcg of B12?

A high-dose B complex supplement (with 1,000 mcg of B-12) hurt, rather than helped, people with type 1 or type 2 diabetes and advanced kidney disease, resulting in a worsening of kidney function and an increase in the risk of heart attack, stroke and death.


What are the symptoms of low B12?

Symptoms of vitamin B12 deficiency
  • a pale yellow tinge to your skin.
  • a sore and red tongue (glossitis)
  • mouth ulcers.
  • pins and needles (paraesthesia)
  • changes in the way that you walk and move around.
  • disturbed vision.
  • irritability.
  • depression.


How much B12 should a woman take daily?

Young adults (19+) – For adult bodies of all genders, 2.4 mcg a day is the recommended dosage. However, your body doesn't necessarily absorb all the B12 you consume.

How long does it take for B12 vitamins 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.


Is 800 mcg B12 too much?

Don't worry about overdoing it -- there's no upper limit on B12, which means there's no evidence that high levels (up to 1,000 mcg) are harmful.

When is the best time to take vitamin B12?

Vitamin B12

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.

How can I get my hemoglobin back fast?

Eat iron-rich foods
  1. red meat, such as beef, pork, and poultry.
  2. dark leafy greens, such as spinach and kale.
  3. dried fruit, like raisins and apricots.
  4. peas, beans, and other legumes.
  5. seafood.
  6. iron-fortified foods, such as breakfast cereals.
  7. seeds and nuts.
  8. organ meats.


What is the main cause of anemia?

A diet consistently low in iron, vitamin B-12, folate and copper increases your risk of anemia. Intestinal disorders. Having an intestinal disorder that affects the absorption of nutrients in your small intestine — such as Crohn's disease and celiac disease — puts you at risk of anemia.

Can you take B12 and iron supplements together?

Iron and B-complex vitamins do not interact negatively with each other, so there are no concerns about taking the two supplements at the same time.

Can B12 shots help with anemia?

Treating vitamin B12 deficiency anaemia. Vitamin B12 deficiency anaemia is usually treated with injections of vitamin B12, in a form called hydroxocobalamin. At first, you'll have these injections every other day for two weeks, or until your symptoms have stopped improving. Your GP or nurse will give the injections.


Is B12 the same as iron pills?

As a vitamin, B-12 is distinct from iron, a mineral, in both its composition and function as a nutrient. However, they are interrelated. On the other hand, their relationship with one another is not the extent of their significance.

What should I take for low iron?

Iron Supplement (Ferrous Sulfate) Ferrous sulfate is an iron supplement you may use to treat iron-deficiency anemia. You may need ferrous sulfate if you don't get enough iron through the foods you eat. Ferrous sulfate comes in tablet and liquid form.

What medications should not be taken with B12?

As summarized in the table provided, vitamin B12 (cobalamin) absorption and utilization by the body can be compromised with the chronic use of certain medications which include: colchicine, chloramphenicol, ethanol, histamine 2 receptor antagonists (H2RA), metformin, and proton pump inhibitors (PPI).


Does vitamin 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.

How much B12 should a woman over 50 take daily?

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.