If you have a vitamin B12 deficiency, the initial dose is usually 30mcg injected under the skin or into the muscle every day for between 5 and 10 days to boost levels of B12 quickly. For maintenance, it is common to have monthly therapy of 100-200 mcg.

What is normal amount of B12 in injection?

If you have a vitamin B12 deficiency, the initial dose is usually 30mcg injected under the skin or into the muscle every day for between 5 and 10 days to boost levels of B12 quickly. For maintenance, it is common to have monthly therapy of 100-200 mcg.

Is 5000mcg of B12 safe?

Is 5000 mcg of B12 too much? A dosage of 5000 mcg of Vitamin B12 has been deemed a safe dosing amount. In fact, it is often recommended for those who have a health condition that affects their B12 absorption.

Can you take too much B12 by injection?

No, you cannot overdose on B12 Medical term: A tolerable upper intake level is the highest level of nutrient intake that does not pose any adverse health effects for the majority of people. Vitamin B12 is a water-soluble vitamin, meaning it dissolves in water and is quickly absorbed by the body.

What is a good range for B12?

Understanding the Results The normal range for vitamin B12 can vary slightly depending on the lab. But a normal level of vitamin B12 in your bloodstream is generally between 190 and 950 picograms per milliliter (pg/mL). Between 200 to 300 pg/mL is considered borderline and your doctor may do more testing.

How often should I take 5000 mcg of B12?

Supplementation Guidelines Most Vitamin B12 supplements start at least 250 mcg and go as high as 5000 mcg per dose. As you can start to see, a once daily or once weekly supplement will more than satisfy the RDA.

Is 400 a low B12 level?

Patients with serum vitamin B12 levels between 150 and 400 ng/L are considered borderline deficient and should be evaluated further by functional tests for vitamin B12 deficiency.

What is a dangerously low B12 level?

What Abnormal Results Mean. Values of less than 160 pg/mL (118 pmol/L) are a possible sign of a vitamin B12 deficiency. People with this deficiency are likely to have or develop symptoms. Older adults with a vitamin B12 level less than 100 pg/mL (74 pmol/L) may also have symptoms.

What is a vitamin B-12 injection?

Vitamin B-12 is a water-soluble B complex vitamin found naturally in a variety of foods, including meat, fish and dairy products. Vitamin B-12 is also added to some foods and is available as a dietary supplement. Vitamin B-12 injections are commonly prescribed to help prevent or treat pernicious anemia and B-12 deficiency.

What are the side effects of vitamin B-12 shots?

Swollen ankles or feet are a potential side effect of vitamin B-12 shots, and require immediate medical attention. There is no upper limit for the intake of vitamin B-12 because the risk of toxicity or overdose is extremely low. However, B-12 shots may have other side effects.

Should I consult my doctor about this vitamin B12 supplement?

Consult your doctor for more details. This product is not a substitute for a proper diet. Remember that it is best to get your vitamins from healthy foods. Vitamin B12 is commonly found in many foods from animals, especially liver, kidney, fish and shellfish, meat, and dairy foods.

What happens if you don’t take vitamin B12?

An untreated vitamin B12 deficiency can lead to neurological problems or pernicious anemia, which occurs when your body doesn’t have enough B12 to produce the amount of red blood cells it needs ( 16 ). Vitamin B12 shots are the most common way to prevent or treat a deficiency.