How many B12 injections are needed?
The usual frequency for intramuscular doses of B12 shots is every 10 days, followed by maintenance doses at varying intervals. After this period, you may be able to administer the injection once per month. This frequency is enough to reverse the signs of vitamin B12 deficiency.Sep 13, 2021
How long is a course of B12 injections?
At first, you'll have these injections every other day for 2 weeks or until your symptoms have started improving. Your GP or nurse will give the injections.
How much B12 do you inject daily?
B12 may be injected into a muscle or beneath the skin at 100 mcg every day or alternate days for 7 days, and then every 3 or 4 days for a month. Afterward, 100 mcg must be injected continuously throughout your life for the best results.Feb 26, 2021
Is it OK to get a B12 shot every week?
For the majority of people, I recommend once weekly for 4 weeks. Then B12 shots can be helpful monthly as maintenance. If we are treating autoimmunity or pernicious anemia, you will receive B12 weekly or twice weekly for 6-12 weeks.
Can you have too much B12?
While the recommended daily amount of vitamin B-12 for adults is 2.4 micrograms, higher doses have been found to be safe. 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.
Is it OK to take 1000 mcg of B12 a day?
The recommended dose for treating vitamin B12 deficiency is 1000 mcg daily. The recommended dose for preventing vitamin B12 deficiency is 1500 mg or 2500 mcg (sublingual tablets) daily. The dose for treating hyperhomocysteinemia is 400 mg daily in combination with folic acid.
Which B12 injection is best?
The body may absorb cyanocobalamin better, while methylcobalamin has a higher retention rate. Both can prevent B12 deficiency, but methylcobalamin should be combined with adenosylcobalamin for best results.May 11, 2020
Example
What harm can having too little of vitamin B12 do? Consider this: Over the course of two months, a 62-year-old man developed numbness and a pins and needles sensation in his hands, had trouble walking, experienced severe joint pain, began turning yellow, and became progressively short of breath. The cause was lack of v…
Causes
- There are many causes for vitamin B12 deficiency. Surprisingly, two of them are practices often undertaken to improve health: a vegetarian diet and weight-loss surgery. Plants dont make vitamin B12. The only foods that deliver it are meat, eggs, poultry, dairy products, and other foods from animals. Strict vegetarians and vegans are at high risk for developing a B12 deficiency if they do…
Symptoms
- Vitamin B12 deficiency can be slow to develop, causing symptoms to appear gradually and intensify over time. It can also come on relatively quickly. Given the array of symptoms a vitamin B12 deficiency can cause, the condition can be overlooked or confused with something else. Vitamin B12deficiency symptoms may include:
Diagnosis
- While an experienced physician may notice the symptoms and be able to detect a vitamin B12 deficiency with a good interview and physical exam, a blood test is needed to confirm the condition. Its a good idea to ask your doctor about having your B12 level checked if you are a strict vegetarian or have had weight-loss surgery or have a condition that interferes with the abs…
Prognosis
- Early detection and treatment is important. If left untreated, the deficiency can cause severe neurologic problems and blood diseases.
Treatment
- A serious vitamin B12 deficiency can be corrected two ways: weekly shots of vitamin B12 or daily high-dose B12 pills. A mild B12 deficiency can be corrected with a standard multivitamin.
Prevention
- In many people, a vitamin B12 deficiency can be prevented. If you are a strict vegetarian or vegan, its important to eat breads, cereals, or other grains that have been fortified with vitamin B12, or take a daily supplement. A standard multivitamin delivers 6 micrograms, more than enough to cover the average bodys daily need.
Society and culture
- The Internet is full of articles lauding the use of vitamin B12 to prevent Alzheimers disease, heart disease, and other chronic conditions or reverse infertility, fatigue, eczema, and a long list of other health problems. Most are based on poor or faulty evidence.
Research
- Take Alzheimers disease as an example. Although there is a relationship between low vitamin B12 levels and cognitive decline, clinical studiesincluding those involving people with Alzheimers diseasehave not shown improvement in cognitive function, even doses of the vitamin as high as 1000 micrograms.
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