Are B12 injections any good?
Answer From Brent A. Bauer, M.D. There’s no solid evidence that vitamin B-12 injections aid weight loss. Vitamin B-12 is a water-soluble B complex vitamin found naturally in a variety of foods, including meat, fish and dairy products.
How long after B12 injections do you feel better?
Since B12 shots are injected intramuscularly bypassing the digestive process, they start to work immediately. Typically, our patients experience positive effects between 24-72 hours after the treatment.
How long does the effect of a B12 shot last?
Generally, the results of vitamin B12 injections can last about one week, but it is vital to have this administered by a healthcare provider. Also, the healthcare provider will determine the appropriate B12 dosage, depending on the current medical condition and diet.
Are there any side effects with B12 injections?
Upon receiving the B12 injection, you may experience a skin reaction in or around the area in which the injection was placed. Pain, redness, and swelling may occur shortly after the procedure is complete. There may also be some irritation in the area, as well as a risk of infection.
What should you not do after a B12 shot?
Avoid strenuous exercise for 48 hours after your treatment. Avoid touching the injection site for 6 hours after your treatment. You may experience a dull ache at the injections site for around 1 hour after your treatment. Avoid any blood thinning medication.
Who should not take B12 injections?
You should not use this medicine if you are allergic to Vitamin B-12 or cobalt, or if you have Leber’s disease (an inherited form of vision loss). This medicine can lead to optic nerve damage (and possibly blindness) in people with Leber’s disease.
Why do I feel sick after B12 injection?
Allergic Reactions The reaction is thought to occur due to impurities in the B12 injection, notes Drugs.com. If a reaction occurs it is usually within several weeks after the first injection. Symptoms of an allergic reaction include difficulty breathing, swelling of the face and airway and hives.
How do you feel after a B12 injection?
The injection is given into a muscle (known as an intramuscular injection). You may have some pain, swelling or itching where your injection was given. However this is usually mild and will wear off quite quickly.
What is the most common cause of B-12 deficiency?
Pernicious anaemia is the most common cause of vitamin B12 deficiency in the UK. Pernicious anaemia is an autoimmune condition that affects your stomach. An autoimmune condition means your immune system, the body’s natural defence system that protects against illness and infection, attacks your body’s healthy cells.