Can vitamin B12 deficiency get worse?

If left untreated, the symptoms of vitamin B12 deficiency tend to worsen and irreversible problems involving the nerves and brain may develop. The risk of experiencing a number of serious complications, including heart failure, may also increase.

How much B12 should someone with a deficiency take?

One review recommended that those with vitamin B12 deficiency take 1 mg of vitamin B12 daily for a month, followed by a maintenance dose of 125–250 mcg per day ( 18 ).

How long does it take for B12 tablets to work?

B12 injections work quickly; they are the most effective way for your body to absorb Vitamin B12. Within 48 to 72 hours, your body will begin to make new red blood cells.

How quickly does B12 tablets work?

What happens if you have a vitamin B12 deficiency?

Because B12 anemia can become debilitating, doctors warn that a chronic vitamin B12 deficiency can be life-threatening. ( 10) The symptoms of vitamin B12 deficiency are often not very specific, so vitamin B12 deficiency can go unnoticed for a long period of time. It is also easily mistaken for other conditions, and therefore remains misdiagnosed.

Can a vitamin B12 shot make you feel better?

According to Harvard Health, a severe vitamin B12 deficiency can usually be corrected with either regular vitamin B12 shots or high-dose B12 pills or capsules. If your deficiency is on the milder side, an over-the-counter multivitamin or B complex supplement is usually enough to do the trick.

Do you need to take vitamin B12 supplements?

Vitamin B12 is not found at high levels in plant foods, so individuals with a plant based diet should make sure they are having more food sources of Vitamin B12. Vegetarians and vegans should consider taking vitamin B12 supplements to avoid developing a vitamin B12 deficiency. Reduce your chances of developing anemia by taking vitamin B12.

How long does it take for vitamin B12 levels to rise?

To help recover from a vitamin B12 deficiency, doctors will recommend a course of treatment involving oral supplementation or injections. The journal Blood reports that it should take up to a week for vitamin B12 levels to rise. It is usually possible to completely correct a vitamin B12 deficiency within 6 weeks to 3 months. (6)